97650992 has 80 divisors (see below), whose sum is σ = 213057792. Its totient is φ = 43130880.

The previous prime is 97650991. The next prime is 97651003. The reversal of 97650992 is 29905679.

It is not an unprimeable number, because it can be changed into a prime (97650991) 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, 311828 + ... + 312140.

Almost surely, 2^97650992 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 97650992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106528896).

97650992 is an abundant number, since it is smaller than the sum of its proper divisors (115406800).

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

97650992 is a wasteful number, since it uses less digits than its factorization.

97650992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 400 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 97650992 is about 9881.8516483501. The cubic root of 97650992 is about 460.4956723763.

The spelling of 97650992 in words is "ninety-seven million, six hundred fifty thousand, nine hundred ninety-two".