77631054 has 16 divisors (see below), whose sum is σ = 155706192. Its totient is φ = 25803008.

The previous prime is 77631053. The next prime is 77631067. The reversal of 77631054 is 45013677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77631053) 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, 16209 + ... + 20444.

It is an arithmetic number, because the mean of its divisors is an integer number (9731637).

Almost surely, 2^77631054 is an apocalyptic number.

77631054 is an abundant number, since it is smaller than the sum of its proper divisors (78075138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77631054 is a wasteful number, since it uses less digits than its factorization.

77631054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37011.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 77631054 is about 8810.8486537904. The cubic root of 77631054 is about 426.5911363968.

The spelling of 77631054 in words is "seventy-seven million, six hundred thirty-one thousand, fifty-four".