89970655 has 8 divisors (see below), whose sum is σ = 108055584. Its totient is φ = 71916000.

The previous prime is 89970653. The next prime is 89970667. The reversal of 89970655 is 55607998.

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

It is not a de Polignac number, because 89970655 - 2¹ = 89970653 is a prime.

It is a super-2 number, since 2×89970655² = 16189437522258050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89970599 and 89970608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89970653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411 + ... + 13420.

It is an arithmetic number, because the mean of its divisors is an integer number (13506948).

Almost surely, 2^89970655 is an apocalyptic number.

89970655 is a deficient number, since it is larger than the sum of its proper divisors (18084929).

89970655 is a wasteful number, since it uses less digits than its factorization.

89970655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15137.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 89970655 is about 9485.2862371148. The cubic root of 89970655 is about 448.0917631306.

The spelling of 89970655 in words is "eighty-nine million, nine hundred seventy thousand, six hundred fifty-five".