77342055 has 32 divisors (see below), whose sum is σ = 145993728. Its totient is φ = 34214400.

The previous prime is 77342051. The next prime is 77342071. The reversal of 77342055 is 55024377.

It is not a de Polignac number, because 77342055 - 2² = 77342051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77342051) 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 31 ways as a sum of consecutive naturals, for example, 8626 + ... + 15135.

It is an arithmetic number, because the mean of its divisors is an integer number (4562304).

Almost surely, 2^77342055 is an apocalyptic number.

77342055 is a deficient number, since it is larger than the sum of its proper divisors (68651673).

77342055 is a wasteful number, since it uses less digits than its factorization.

77342055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23807.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 77342055 is about 8794.4331824172. The cubic root of 77342055 is about 426.0611177712.

The spelling of 77342055 in words is "seventy-seven million, three hundred forty-two thousand, fifty-five".