76399015 has 16 divisors (see below), whose sum is σ = 114301440. Its totient is φ = 47625120.

The previous prime is 76399013. The next prime is 76399027. The reversal of 76399015 is 51099367.

It is not a de Polignac number, because 76399015 - 2¹ = 76399013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76399013) by changing a digit.

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, 98835 + ... + 99604.

It is an arithmetic number, because the mean of its divisors is an integer number (7143840).

Almost surely, 2^76399015 is an apocalyptic number.

76399015 is a deficient number, since it is larger than the sum of its proper divisors (37902425).

76399015 is a wasteful number, since it uses less digits than its factorization.

76399015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198462.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 76399015 is about 8740.6530076419. The cubic root of 76399015 is about 424.3223618723.

The spelling of 76399015 in words is "seventy-six million, three hundred ninety-nine thousand, fifteen".