697872 has 80 divisors (see below), whose sum is σ = 2158592. Its totient is φ = 190080.

The previous prime is 697831. The next prime is 697877. The reversal of 697872 is 278796.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 697872.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 697872.

It is not an unprimeable number, because it can be changed into a prime (697877) by changing a digit.

697872 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10383 + ... + 10449.

2⁶⁹⁷⁸⁷² is an apocalyptic number.

697872 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1079296).

697872 is an abundant number, since it is smaller than the sum of its proper divisors (1460720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

697872 is a wasteful number, since it uses less digits than its factorization.

697872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 110 counting only the distinct ones).

The product of its digits is 42336, while the sum is 39.

The square root of 697872 is about 835.3873353122. The cubic root of 697872 is about 88.7003345739.

The spelling of 697872 in words is "six hundred ninety-seven thousand, eight hundred seventy-two".