89201657 has 4 divisors (see below), whose sum is σ = 89256960. Its totient is φ = 89146356.

The previous prime is 89201647. The next prime is 89201689. The reversal of 89201657 is 75610298.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75610298 = 2 ⋅37805149.

It is a cyclic number.

It is not a de Polignac number, because 89201657 - 2¹⁰ = 89200633 is a prime.

It is a super-2 number, since 2×89201657² = 15913871223091298, which contains 22 as substring.

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 89201657.

It is not an unprimeable number, because it can be changed into a prime (89201627) 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, 25157 + ... + 28482.

It is an arithmetic number, because the mean of its divisors is an integer number (22314240).

Almost surely, 2^89201657 is an apocalyptic number.

It is an amenable number.

89201657 is a deficient number, since it is larger than the sum of its proper divisors (55303).

89201657 is a wasteful number, since it uses less digits than its factorization.

89201657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55302.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 89201657 is about 9444.6628844020. The cubic root of 89201657 is about 446.8114638474.

The spelling of 89201657 in words is "eighty-nine million, two hundred one thousand, six hundred fifty-seven".