77746055 has 4 divisors (see below), whose sum is σ = 93295272. Its totient is φ = 62196840.

The previous prime is 77746001. The next prime is 77746061. The reversal of 77746055 is 55064777.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55064777 = 47 ⋅1171591.

It is not a de Polignac number, because 77746055 - 2¹² = 77741959 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 3 ways as a sum of consecutive naturals, for example, 7774601 + ... + 7774610.

It is an arithmetic number, because the mean of its divisors is an integer number (23323818).

Almost surely, 2^77746055 is an apocalyptic number.

77746055 is a deficient number, since it is larger than the sum of its proper divisors (15549217).

77746055 is a wasteful number, since it uses less digits than its factorization.

77746055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15549216.

The product of its (nonzero) digits is 205800, while the sum is 41.

The square root of 77746055 is about 8817.3723410095. The cubic root of 77746055 is about 426.8016801589.

The spelling of 77746055 in words is "seventy-seven million, seven hundred forty-six thousand, fifty-five".