697898580 has 24 divisors (see below), whose sum is σ = 1954116192. Its totient is φ = 186106272.

The previous prime is 697898563. The next prime is 697898581. The reversal of 697898580 is 85898796.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60), and also a Moran number because the ratio is a prime number: 11631643 = 697898580 / (6 + 9 + 7 + 8 + 9 + 8 + 5 + 8 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697898581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5815762 + ... + 5815881.

It is an arithmetic number, because the mean of its divisors is an integer number (81421508).

Almost surely, 2^697898580 is an apocalyptic number.

697898580 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

697898580 is an abundant number, since it is smaller than the sum of its proper divisors (1256217612).

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

697898580 is a wasteful number, since it uses less digits than its factorization.

697898580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11631655 (or 11631653 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 60.

The square root of 697898580 is about 26417.7701557115. The cubic root of 697898580 is about 887.0146067576.

The spelling of 697898580 in words is "six hundred ninety-seven million, eight hundred ninety-eight thousand, five hundred eighty".