76772405 has 8 divisors (see below), whose sum is σ = 92679552. Its totient is φ = 61049488.

The previous prime is 76772359. The next prime is 76772429. The reversal of 76772405 is 50427767.

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 76772405 - 2¹² = 76768309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 45137 + ... + 46806.

It is an arithmetic number, because the mean of its divisors is an integer number (11584944).

Almost surely, 2^76772405 is an apocalyptic number.

It is an amenable number.

76772405 is a deficient number, since it is larger than the sum of its proper divisors (15907147).

76772405 is a wasteful number, since it uses less digits than its factorization.

76772405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92115.

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 76772405 is about 8761.9863615507. The cubic root of 76772405 is about 425.0125117424.

It can be divided in two parts, 76772 and 405, that added together give a palindrome (77177).

The spelling of 76772405 in words is "seventy-six million, seven hundred seventy-two thousand, four hundred five".