86051649 has 4 divisors (see below), whose sum is σ = 114735536. Its totient is φ = 57367764.

The previous prime is 86051639. The next prime is 86051653. The reversal of 86051649 is 94615068.

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 not a de Polignac number, because 86051649 - 2⁴ = 86051633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86051639) 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, 14341939 + ... + 14341944.

It is an arithmetic number, because the mean of its divisors is an integer number (28683884).

Almost surely, 2^86051649 is an apocalyptic number.

It is an amenable number.

86051649 is a deficient number, since it is larger than the sum of its proper divisors (28683887).

86051649 is a wasteful number, since it uses less digits than its factorization.

86051649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28683886.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 86051649 is about 9276.4028049670. The cubic root of 86051649 is about 441.4888424917.

The spelling of 86051649 in words is "eighty-six million, fifty-one thousand, six hundred forty-nine".