97801924 has 24 divisors (see below), whose sum is σ = 190689408. Its totient is φ = 43508640.

The previous prime is 97801903. The next prime is 97801927. The reversal of 97801924 is 42910879.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (97801927) 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, 21579 + ... + 25714.

It is an arithmetic number, because the mean of its divisors is an integer number (7945392).

Almost surely, 2^97801924 is an apocalyptic number.

97801924 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

97801924 is a deficient number, since it is larger than the sum of its proper divisors (92887484).

97801924 is a wasteful number, since it uses less digits than its factorization.

97801924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47355 (or 47353 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 97801924 is about 9889.4855275692. The cubic root of 97801924 is about 460.7328017465.

The spelling of 97801924 in words is "ninety-seven million, eight hundred one thousand, nine hundred twenty-four".