76516405 has 16 divisors (see below), whose sum is σ = 111110400. Its totient is φ = 49381632.

The previous prime is 76516403. The next prime is 76516411. The reversal of 76516405 is 50461567.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 76516405 - 2¹ = 76516403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76516403) 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, 63705 + ... + 64894.

It is an arithmetic number, because the mean of its divisors is an integer number (6944400).

Almost surely, 2^76516405 is an apocalyptic number.

It is an amenable number.

76516405 is a deficient number, since it is larger than the sum of its proper divisors (34593995).

76516405 is a wasteful number, since it uses less digits than its factorization.

76516405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128628.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 76516405 is about 8747.3656034260. The cubic root of 76516405 is about 424.5395798192.

The spelling of 76516405 in words is "seventy-six million, five hundred sixteen thousand, four hundred five".