86773951 has 4 divisors (see below), whose sum is σ = 94662504. Its totient is φ = 78885400.

The previous prime is 86773913. The next prime is 86773979. The reversal of 86773951 is 15937768.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 86773951 - 2⁷ = 86773823 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 (86773901) 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 3 ways as a sum of consecutive naturals, for example, 3944260 + ... + 3944281.

It is an arithmetic number, because the mean of its divisors is an integer number (23665626).

Almost surely, 2^86773951 is an apocalyptic number.

86773951 is a deficient number, since it is larger than the sum of its proper divisors (7888553).

86773951 is a wasteful number, since it uses less digits than its factorization.

86773951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888552.

The product of its digits is 317520, while the sum is 46.

The square root of 86773951 is about 9315.2536734112. The cubic root of 86773951 is about 442.7206615405.

The spelling of 86773951 in words is "eighty-six million, seven hundred seventy-three thousand, nine hundred fifty-one".