86376621 has 4 divisors (see below), whose sum is σ = 115168832. Its totient is φ = 57584412.

The previous prime is 86376617. The next prime is 86376659. The reversal of 86376621 is 12667368.

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 86376621 - 2² = 86376617 is a prime.

It is a super-3 number, since 3×86376621³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86376621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86376421) 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, 14396101 + ... + 14396106.

It is an arithmetic number, because the mean of its divisors is an integer number (28792208).

Almost surely, 2^86376621 is an apocalyptic number.

It is an amenable number.

86376621 is a deficient number, since it is larger than the sum of its proper divisors (28792211).

86376621 is a wasteful number, since it uses less digits than its factorization.

86376621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28792210.

The product of its digits is 72576, while the sum is 39.

The square root of 86376621 is about 9293.9023558460. The cubic root of 86376621 is about 442.0439017155.

The spelling of 86376621 in words is "eighty-six million, three hundred seventy-six thousand, six hundred twenty-one".