77045090 has 16 divisors (see below), whose sum is σ = 138879360. Its totient is φ = 30774000.

The previous prime is 77045077. The next prime is 77045099. The reversal of 77045090 is 9054077.

It is not an unprimeable number, because it can be changed into a prime (77045099) 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, 2381 + ... + 12639.

It is an arithmetic number, because the mean of its divisors is an integer number (8679960).

Almost surely, 2^77045090 is an apocalyptic number.

77045090 is a deficient number, since it is larger than the sum of its proper divisors (61834270).

77045090 is a wasteful number, since it uses less digits than its factorization.

77045090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11017.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 77045090 is about 8777.5332525716. The cubic root of 77045090 is about 425.5151124406.

The spelling of 77045090 in words is "seventy-seven million, forty-five thousand, ninety".