77648054 has 16 divisors (see below), whose sum is σ = 128065536. Its totient is φ = 35015400.

The previous prime is 77648033. The next prime is 77648057. The reversal of 77648054 is 45084677.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77648057) 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 7 ways as a sum of consecutive naturals, for example, 11102 + ... + 16689.

It is an arithmetic number, because the mean of its divisors is an integer number (8004096).

Almost surely, 2^77648054 is an apocalyptic number.

77648054 is a deficient number, since it is larger than the sum of its proper divisors (50417482).

77648054 is a wasteful number, since it uses less digits than its factorization.

77648054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27931.

The product of its (nonzero) digits is 188160, while the sum is 41.

The square root of 77648054 is about 8811.8133207643. The cubic root of 77648054 is about 426.6222730775.

The spelling of 77648054 in words is "seventy-seven million, six hundred forty-eight thousand, fifty-four".