97389040 has 40 divisors (see below), whose sum is σ = 258778080. Its totient is φ = 33390336.

The previous prime is 97389031. The next prime is 97389043. The reversal of 97389040 is 4098379.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×97389040² = 18969250224243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 97388984 and 97389002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97389043) 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, 86395 + ... + 87514.

It is an arithmetic number, because the mean of its divisors is an integer number (6469452).

Almost surely, 2^97389040 is an apocalyptic number.

It is an amenable number.

97389040 is an abundant number, since it is smaller than the sum of its proper divisors (161389040).

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

97389040 is a wasteful number, since it uses less digits than its factorization.

97389040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173929 (or 173923 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 97389040 is about 9868.5885515610. The cubic root of 97389040 is about 460.0835387032.

The spelling of 97389040 in words is "ninety-seven million, three hundred eighty-nine thousand, forty".