90560971 has 4 divisors (see below), whose sum is σ = 91578600. Its totient is φ = 89543344.

The previous prime is 90560947. The next prime is 90560983. The reversal of 90560971 is 17906509.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 90560971 - 2⁷ = 90560843 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 90560971.

It is not an unprimeable number, because it can be changed into a prime (90560671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508681 + ... + 508858.

It is an arithmetic number, because the mean of its divisors is an integer number (22894650).

Almost surely, 2^90560971 is an apocalyptic number.

90560971 is a deficient number, since it is larger than the sum of its proper divisors (1017629).

90560971 is a wasteful number, since it uses less digits than its factorization.

90560971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017628.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 90560971 is about 9516.3528202773. The cubic root of 90560971 is about 449.0696350184.

The spelling of 90560971 in words is "ninety million, five hundred sixty thousand, nine hundred seventy-one".