97564830 has 64 divisors (see below), whose sum is σ = 261709056. Its totient is φ = 23072000.

The previous prime is 97564823. The next prime is 97564837. The reversal of 97564830 is 3846579.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (97564823) and next prime (97564837).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97564837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9925 + ... + 17135.

It is an arithmetic number, because the mean of its divisors is an integer number (4089204).

Almost surely, 2^97564830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97564830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130854528).

97564830 is an abundant number, since it is smaller than the sum of its proper divisors (164144226).

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

97564830 is a wasteful number, since it uses less digits than its factorization.

97564830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7273.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 97564830 is about 9877.4910782040. The cubic root of 97564830 is about 460.3601936245.

The spelling of 97564830 in words is "ninety-seven million, five hundred sixty-four thousand, eight hundred thirty".