76716551 has 4 divisors (see below), whose sum is σ = 76749504. Its totient is φ = 76683600.

The previous prime is 76716533. The next prime is 76716553. The reversal of 76716551 is 15561767.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15561767 = 13 ⋅1197059.

It is a cyclic number.

It is not a de Polignac number, because 76716551 - 2¹⁴ = 76700167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76716553) 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 3 ways as a sum of consecutive naturals, for example, 12695 + ... + 17736.

It is an arithmetic number, because the mean of its divisors is an integer number (19187376).

Almost surely, 2^76716551 is an apocalyptic number.

76716551 is a deficient number, since it is larger than the sum of its proper divisors (32953).

76716551 is a wasteful number, since it uses less digits than its factorization.

76716551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32952.

The product of its digits is 44100, while the sum is 38.

The square root of 76716551 is about 8758.7984906607. The cubic root of 76716551 is about 424.9094173732.

The spelling of 76716551 in words is "seventy-six million, seven hundred sixteen thousand, five hundred fifty-one".