86574157 has 4 divisors (see below), whose sum is σ = 86595136. Its totient is φ = 86553180.

The previous prime is 86574151. The next prime is 86574197. The reversal of 86574157 is 75147568.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86574157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86574151) 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, 2019 + ... + 13312.

It is an arithmetic number, because the mean of its divisors is an integer number (21648784).

Almost surely, 2^86574157 is an apocalyptic number.

It is an amenable number.

86574157 is a deficient number, since it is larger than the sum of its proper divisors (20979).

86574157 is a wasteful number, since it uses less digits than its factorization.

86574157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20978.

The product of its digits is 235200, while the sum is 43.

The square root of 86574157 is about 9304.5234697968. The cubic root of 86574157 is about 442.3806174589.

The spelling of 86574157 in words is "eighty-six million, five hundred seventy-four thousand, one hundred fifty-seven".