76903513 has 4 divisors (see below), whose sum is σ = 80247168. Its totient is φ = 73559860.

The previous prime is 76903487. The next prime is 76903523. The reversal of 76903513 is 31530967.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31530967 = 13 ⋅2425459.

It is a cyclic number.

It is not a de Polignac number, because 76903513 - 2¹⁷ = 76772441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76903523) 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 3 ways as a sum of consecutive naturals, for example, 1671793 + ... + 1671838.

It is an arithmetic number, because the mean of its divisors is an integer number (20061792).

Almost surely, 2^76903513 is an apocalyptic number.

It is an amenable number.

76903513 is a deficient number, since it is larger than the sum of its proper divisors (3343655).

76903513 is a wasteful number, since it uses less digits than its factorization.

76903513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343654.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 76903513 is about 8769.4648069309. The cubic root of 76903513 is about 425.2543123842.

The spelling of 76903513 in words is "seventy-six million, nine hundred three thousand, five hundred thirteen".