97663572 has 144 divisors (see below), whose sum is σ = 283832640. Its totient is φ = 28118016.

The previous prime is 97663571. The next prime is 97663607. The reversal of 97663572 is 27536679.

97663572 is a `hidden beast` number, since 9 + 7 + 6 + 635 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97663571) 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 47 ways as a sum of consecutive naturals, for example, 430123 + ... + 430349.

It is an arithmetic number, because the mean of its divisors is an integer number (1971060).

Almost surely, 2^97663572 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 97663572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141916320).

97663572 is an abundant number, since it is smaller than the sum of its proper divisors (186169068).

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

97663572 is a wasteful number, since it uses less digits than its factorization.

97663572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 305 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 97663572 is about 9882.4881482347. The cubic root of 97663572 is about 460.5154461533.

The spelling of 97663572 in words is "ninety-seven million, six hundred sixty-three thousand, five hundred seventy-two".