97685240 has 32 divisors (see below), whose sum is σ = 220132080. Its totient is φ = 39013632.

The previous prime is 97685239. The next prime is 97685249. The reversal of 97685240 is 4258679.

It is a super-2 number, since 2×97685240² = 19084812227715200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97685249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31604 + ... + 34556.

Almost surely, 2^97685240 is an apocalyptic number.

It is an amenable number.

97685240 is an abundant number, since it is smaller than the sum of its proper divisors (122446840).

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

97685240 is a wasteful number, since it uses less digits than its factorization.

97685240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3791 (or 3787 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 97685240 is about 9883.5843700552. The cubic root of 97685240 is about 460.5495008529.

The spelling of 97685240 in words is "ninety-seven million, six hundred eighty-five thousand, two hundred forty".