76399505 has 16 divisors (see below), whose sum is σ = 112836864. Its totient is φ = 48358080.

The previous prime is 76399501. The next prime is 76399541. The reversal of 76399505 is 50599367.

It is not a de Polignac number, because 76399505 - 2² = 76399501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76399501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83501 + ... + 84410.

It is an arithmetic number, because the mean of its divisors is an integer number (7052304).

Almost surely, 2^76399505 is an apocalyptic number.

It is an amenable number.

76399505 is a deficient number, since it is larger than the sum of its proper divisors (36437359).

76399505 is a wasteful number, since it uses less digits than its factorization.

76399505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167936.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 76399505 is about 8740.6810375394. The cubic root of 76399505 is about 424.3232690284.

The spelling of 76399505 in words is "seventy-six million, three hundred ninety-nine thousand, five hundred five".