77144076 has 30 divisors (see below), whose sum is σ = 201670700. Its totient is φ = 25714584.

The previous prime is 77144071. The next prime is 77144087. The reversal of 77144076 is 67044177.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 77144076.

It is not an unprimeable number, because it can be changed into a prime (77144071) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 118726 + ... + 119373.

Almost surely, 2^77144076 is an apocalyptic number.

It is an amenable number.

77144076 is an abundant number, since it is smaller than the sum of its proper divisors (124526624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77144076 is a wasteful number, since it uses less digits than its factorization.

77144076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238115 (or 238104 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 77144076 is about 8783.1700427579. The cubic root of 77144076 is about 425.6972655731.

The spelling of 77144076 in words is "seventy-seven million, one hundred forty-four thousand, seventy-six".