77243416 has 16 divisors (see below), whose sum is σ = 144986400. Its totient is φ = 38580384.

The previous prime is 77243399. The next prime is 77243431. The reversal of 77243416 is 61434277.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666 + ... + 12958.

It is an arithmetic number, because the mean of its divisors is an integer number (9061650).

Almost surely, 2^77243416 is an apocalyptic number.

It is an amenable number.

77243416 is a deficient number, since it is larger than the sum of its proper divisors (67742984).

77243416 is a wasteful number, since it uses less digits than its factorization.

77243416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10338 (or 10334 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 77243416 is about 8788.8233569688. The cubic root of 77243416 is about 425.8799135460.

The spelling of 77243416 in words is "seventy-seven million, two hundred forty-three thousand, four hundred sixteen".