86056973 has 4 divisors (see below), whose sum is σ = 87093888. Its totient is φ = 85020060.

The previous prime is 86056951. The next prime is 86056979. The reversal of 86056973 is 37965068.

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 86056973 - 2¹⁴ = 86040589 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86056979) 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, 518333 + ... + 518498.

It is an arithmetic number, because the mean of its divisors is an integer number (21773472).

Almost surely, 2^86056973 is an apocalyptic number.

86056973 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

86056973 is a deficient number, since it is larger than the sum of its proper divisors (1036915).

86056973 is a wasteful number, since it uses less digits than its factorization.

86056973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036914.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 86056973 is about 9276.6897652126. The cubic root of 86056973 is about 441.4979472489.

The spelling of 86056973 in words is "eighty-six million, fifty-six thousand, nine hundred seventy-three".