86951491 has 8 divisors (see below), whose sum is σ = 95284224. Its totient is φ = 78690120.

The previous prime is 86951489. The next prime is 86951507. The reversal of 86951491 is 19415968.

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 86951491 - 2¹ = 86951489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86951401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15271 + ... + 20176.

It is an arithmetic number, because the mean of its divisors is an integer number (11910528).

Almost surely, 2^86951491 is an apocalyptic number.

86951491 is a deficient number, since it is larger than the sum of its proper divisors (8332733).

86951491 is a wasteful number, since it uses less digits than its factorization.

86951491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35681.

The product of its digits is 77760, while the sum is 43.

The square root of 86951491 is about 9324.7783351670. The cubic root of 86951491 is about 443.0223921882.

The spelling of 86951491 in words is "eighty-six million, nine hundred fifty-one thousand, four hundred ninety-one".