77242766 has 16 divisors (see below), whose sum is σ = 117101904. Its totient is φ = 38211264.

The previous prime is 77242757. The next prime is 77242769. The reversal of 77242766 is 66724277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77242769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101660 + ... + 102416.

It is an arithmetic number, because the mean of its divisors is an integer number (7318869).

Almost surely, 2^77242766 is an apocalyptic number.

77242766 is a deficient number, since it is larger than the sum of its proper divisors (39859138).

77242766 is a wasteful number, since it uses less digits than its factorization.

77242766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235.

The product of its digits is 197568, while the sum is 41.

The square root of 77242766 is about 8788.7863781070. The cubic root of 77242766 is about 425.8787189556.

The spelling of 77242766 in words is "seventy-seven million, two hundred forty-two thousand, seven hundred sixty-six".