77313242 has 16 divisors (see below), whose sum is σ = 123264960. Its totient is φ = 36264672.

The previous prime is 77313233. The next prime is 77313253. The reversal of 77313242 is 24231377.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5963 + ... + 13790.

It is an arithmetic number, because the mean of its divisors is an integer number (7704060).

Almost surely, 2^77313242 is an apocalyptic number.

77313242 is a deficient number, since it is larger than the sum of its proper divisors (45951718).

77313242 is a wasteful number, since it uses less digits than its factorization.

77313242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19877.

The product of its digits is 7056, while the sum is 29.

The square root of 77313242 is about 8792.7948912732. The cubic root of 77313242 is about 426.0082029470.

The spelling of 77313242 in words is "seventy-seven million, three hundred thirteen thousand, two hundred forty-two".