97899040 has 96 divisors (see below), whose sum is σ = 248209920. Its totient is φ = 36393984.

The previous prime is 97899031. The next prime is 97899047. The reversal of 97899040 is 4099879.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97899047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135801 + ... + 136519.

It is an arithmetic number, because the mean of its divisors is an integer number (2585520).

Almost surely, 2^97899040 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 97899040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124104960).

97899040 is an abundant number, since it is smaller than the sum of its proper divisors (150310880).

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

97899040 is a wasteful number, since it uses less digits than its factorization.

97899040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 97899040 is about 9894.3943725728. The cubic root of 97899040 is about 460.8852517968.

The spelling of 97899040 in words is "ninety-seven million, eight hundred ninety-nine thousand, forty".