97985388 has 24 divisors (see below), whose sum is σ = 228795840. Its totient is φ = 32638480.

The previous prime is 97985383. The next prime is 97985429. The reversal of 97985388 is 88358979.

It is a super-2 number, since 2×97985388² = 19202272523021088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97985383) 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, 26323 + ... + 29813.

It is an arithmetic number, because the mean of its divisors is an integer number (9533160).

Almost surely, 2^97985388 is an apocalyptic number.

It is an amenable number.

97985388 is an abundant number, since it is smaller than the sum of its proper divisors (130810452).

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

97985388 is a wasteful number, since it uses less digits than its factorization.

97985388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5837 (or 5835 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The square root of 97985388 is about 9898.7568916506. The cubic root of 97985388 is about 461.0207138849.

The spelling of 97985388 in words is "ninety-seven million, nine hundred eighty-five thousand, three hundred eighty-eight".