78333086 has 32 divisors (see below), whose sum is σ = 133932960. Its totient is φ = 34062336.

The previous prime is 78333071. The next prime is 78333091. The reversal of 78333086 is 68033387.

It is a super-2 number, since 2×78333086² = 12272144724566792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 126650 + ... + 127266.

It is an arithmetic number, because the mean of its divisors is an integer number (4185405).

Almost surely, 2^78333086 is an apocalyptic number.

78333086 is a deficient number, since it is larger than the sum of its proper divisors (55599874).

78333086 is a wasteful number, since it uses less digits than its factorization.

78333086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 78333086 is about 8850.5980588885. The cubic root of 78333086 is about 427.8731937206.

The spelling of 78333086 in words is "seventy-eight million, three hundred thirty-three thousand, eighty-six".