76421513 has 8 divisors (see below), whose sum is σ = 87464832. Its totient is φ = 65409696.

The previous prime is 76421507. The next prime is 76421531. The reversal of 76421513 is 31512467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76421513 - 2⁴ = 76421497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76421563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2420 + ... + 12597.

It is an arithmetic number, because the mean of its divisors is an integer number (10933104).

Almost surely, 2^76421513 is an apocalyptic number.

It is an amenable number.

76421513 is a deficient number, since it is larger than the sum of its proper divisors (11043319).

76421513 is a wasteful number, since it uses less digits than its factorization.

76421513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15751.

The product of its digits is 5040, while the sum is 29.

The square root of 76421513 is about 8741.9398876908. The cubic root of 76421513 is about 424.3640093009.

The spelling of 76421513 in words is "seventy-six million, four hundred twenty-one thousand, five hundred thirteen".