76863399 has 8 divisors (see below), whose sum is σ = 102631920. Its totient is φ = 51168576.

The previous prime is 76863373. The next prime is 76863407. The reversal of 76863399 is 99336867.

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 76863399 - 2¹⁵ = 76830631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76863329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15942 + ... + 20195.

It is an arithmetic number, because the mean of its divisors is an integer number (12828990).

Almost surely, 2^76863399 is an apocalyptic number.

76863399 is a deficient number, since it is larger than the sum of its proper divisors (25768521).

76863399 is a wasteful number, since it uses less digits than its factorization.

76863399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36849.

The product of its digits is 1469664, while the sum is 51.

The square root of 76863399 is about 8767.1773678876. The cubic root of 76863399 is about 425.1803598962.

The spelling of 76863399 in words is "seventy-six million, eight hundred sixty-three thousand, three hundred ninety-nine".