69897072 has 80 divisors (see below), whose sum is σ = 207383552. Its totient is φ = 19872000.

The previous prime is 69897019. The next prime is 69897077. The reversal of 69897072 is 27079896.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69897077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92697 + ... + 93447.

Almost surely, 2^69897072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69897072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103691776).

69897072 is an abundant number, since it is smaller than the sum of its proper divisors (137486480).

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

69897072 is a wasteful number, since it uses less digits than its factorization.

69897072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 69897072 is about 8360.4468780084. The cubic root of 69897072 is about 411.9264329638.

The spelling of 69897072 in words is "sixty-nine million, eight hundred ninety-seven thousand, seventy-two".