86198537 has 4 divisors (see below), whose sum is σ = 87035520. Its totient is φ = 85361556.

The previous prime is 86198521. The next prime is 86198579. The reversal of 86198537 is 73589168.

It is a happy number.

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 not a de Polignac number, because 86198537 - 2⁴ = 86198521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86198491 and 86198500.

It is not an unprimeable number, because it can be changed into a prime (86198597) 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, 418337 + ... + 418542.

It is an arithmetic number, because the mean of its divisors is an integer number (21758880).

Almost surely, 2^86198537 is an apocalyptic number.

It is an amenable number.

86198537 is a deficient number, since it is larger than the sum of its proper divisors (836983).

86198537 is a wasteful number, since it uses less digits than its factorization.

86198537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836982.

The product of its digits is 362880, while the sum is 47.

The square root of 86198537 is about 9284.3167223011. The cubic root of 86198537 is about 441.7399031435.

The spelling of 86198537 in words is "eighty-six million, one hundred ninety-eight thousand, five hundred thirty-seven".