86379621 has 8 divisors (see below), whose sum is σ = 115946400. Its totient is φ = 57199632.

The previous prime is 86379613. The next prime is 86379637. The reversal of 86379621 is 12697368.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86379621 - 2³ = 86379613 is a prime.

It is a super-2 number, since 2×86379621² = 14922877848207282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86379641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96175 + ... + 97068.

It is an arithmetic number, because the mean of its divisors is an integer number (14493300).

Almost surely, 2^86379621 is an apocalyptic number.

It is an amenable number.

86379621 is a deficient number, since it is larger than the sum of its proper divisors (29566779).

86379621 is a wasteful number, since it uses less digits than its factorization.

86379621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193395.

The product of its digits is 108864, while the sum is 42.

The square root of 86379621 is about 9294.0637505883. The cubic root of 86379621 is about 442.0490192899.

The spelling of 86379621 in words is "eighty-six million, three hundred seventy-nine thousand, six hundred twenty-one".