76939394 has 32 divisors (see below), whose sum is σ = 134492160. Its totient is φ = 32332608.

The previous prime is 76939381. The next prime is 76939403. The reversal of 76939394 is 49393967.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193604 + ... + 194000.

It is an arithmetic number, because the mean of its divisors is an integer number (4202880).

Almost surely, 2^76939394 is an apocalyptic number.

76939394 is a deficient number, since it is larger than the sum of its proper divisors (57552766).

76939394 is a wasteful number, since it uses less digits than its factorization.

76939394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its digits is 1102248, while the sum is 50.

The square root of 76939394 is about 8771.5103602515. The cubic root of 76939394 is about 425.3204393050.

The spelling of 76939394 in words is "seventy-six million, nine hundred thirty-nine thousand, three hundred ninety-four".