77994854 has 16 divisors (see below), whose sum is σ = 134117376. Its totient is φ = 33323400.

The previous prime is 77994823. The next prime is 77994871. The reversal of 77994854 is 45849977.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77994796 and 77994805.

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, 3782 + ... + 13049.

It is an arithmetic number, because the mean of its divisors is an integer number (8382336).

Almost surely, 2^77994854 is an apocalyptic number.

77994854 is a deficient number, since it is larger than the sum of its proper divisors (56122522).

77994854 is a wasteful number, since it uses less digits than its factorization.

77994854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17171.

The product of its digits is 2540160, while the sum is 53.

The square root of 77994854 is about 8831.4695266416. The cubic root of 77994854 is about 427.2564717659.

The spelling of 77994854 in words is "seventy-seven million, nine hundred ninety-four thousand, eight hundred fifty-four".