77144092 has 12 divisors (see below), whose sum is σ = 135184896. Its totient is φ = 38519840.

The previous prime is 77144087. The next prime is 77144099. The reversal of 77144092 is 29044177.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77144099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9628 + ... + 15715.

It is an arithmetic number, because the mean of its divisors is an integer number (11265408).

Almost surely, 2^77144092 is an apocalyptic number.

It is an amenable number.

77144092 is a deficient number, since it is larger than the sum of its proper divisors (58040804).

77144092 is a wasteful number, since it uses less digits than its factorization.

77144092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26108 (or 26106 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 77144092 is about 8783.1709535907. The cubic root of 77144092 is about 425.6972950036.

The spelling of 77144092 in words is "seventy-seven million, one hundred forty-four thousand, ninety-two".