76481977 has 8 divisors (see below), whose sum is σ = 89853120. Its totient is φ = 64180560.

The previous prime is 76481941. The next prime is 76481987. The reversal of 76481977 is 77918467.

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 76481977 - 2¹⁵ = 76449209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76481977.

It is not an unprimeable number, because it can be changed into a prime (76481987) 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 7 ways as a sum of consecutive naturals, for example, 267277 + ... + 267562.

It is an arithmetic number, because the mean of its divisors is an integer number (11231640).

Almost surely, 2^76481977 is an apocalyptic number.

It is an amenable number.

76481977 is a deficient number, since it is larger than the sum of its proper divisors (13371143).

76481977 is a wasteful number, since it uses less digits than its factorization.

76481977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534863.

The product of its digits is 592704, while the sum is 49.

The square root of 76481977 is about 8745.3974752438. The cubic root of 76481977 is about 424.4758974348.

The spelling of 76481977 in words is "seventy-six million, four hundred eighty-one thousand, nine hundred seventy-seven".