89420657 has 8 divisors (see below), whose sum is σ = 90563880. Its totient is φ = 88283520.

The previous prime is 89420641. The next prime is 89420671. The reversal of 89420657 is 75602498.

It can be written as a sum of positive squares in 4 ways, for example, as 8708401 + 80712256 = 2951^2 + 8984^2 .

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 89420657 - 2⁴ = 89420641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89420627) 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, 32807 + ... + 35427.

It is an arithmetic number, because the mean of its divisors is an integer number (11320485).

Almost surely, 2^89420657 is an apocalyptic number.

It is an amenable number.

89420657 is a deficient number, since it is larger than the sum of its proper divisors (1143223).

89420657 is a wasteful number, since it uses less digits than its factorization.

89420657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 89420657 is about 9456.2496265697. The cubic root of 89420657 is about 447.1768223096.

The spelling of 89420657 in words is "eighty-nine million, four hundred twenty thousand, six hundred fifty-seven".