97306561 has 8 divisors (see below), whose sum is σ = 106282944. Its totient is φ = 88351920.

The previous prime is 97306541. The next prime is 97306567. The reversal of 97306561 is 16560379.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97306561 - 2¹⁵ = 97273793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97306561.

It is not an unprimeable number, because it can be changed into a prime (97306567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4771 + ... + 14743.

It is an arithmetic number, because the mean of its divisors is an integer number (13285368).

Almost surely, 2^97306561 is an apocalyptic number.

It is an amenable number.

97306561 is a deficient number, since it is larger than the sum of its proper divisors (8976383).

97306561 is a wasteful number, since it uses less digits than its factorization.

97306561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10871.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 97306561 is about 9864.4088013423. The cubic root of 97306561 is about 459.9536200876.

The spelling of 97306561 in words is "ninety-seven million, three hundred six thousand, five hundred sixty-one".