77290894 has 4 divisors (see below), whose sum is σ = 115936344. Its totient is φ = 38645446.

The previous prime is 77290859. The next prime is 77290897. The reversal of 77290894 is 49809277.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49809277 = 7 ⋅7115611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77290897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19322722 + ... + 19322725.

It is an arithmetic number, because the mean of its divisors is an integer number (28984086).

Almost surely, 2^77290894 is an apocalyptic number.

77290894 is a deficient number, since it is larger than the sum of its proper divisors (38645450).

77290894 is a wasteful number, since it uses less digits than its factorization.

77290894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38645449.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 77290894 is about 8791.5239862040. The cubic root of 77290894 is about 425.9671519854.

The spelling of 77290894 in words is "seventy-seven million, two hundred ninety thousand, eight hundred ninety-four".