77004045 has 24 divisors (see below), whose sum is σ = 134160000. Its totient is φ = 40857696.

The previous prime is 77004041. The next prime is 77004047. The reversal of 77004045 is 54040077.

It is not a de Polignac number, because 77004045 - 2² = 77004041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77004041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4656 + ... + 13254.

It is an arithmetic number, because the mean of its divisors is an integer number (5590000).

Almost surely, 2^77004045 is an apocalyptic number.

It is an amenable number.

77004045 is a deficient number, since it is larger than the sum of its proper divisors (57155955).

77004045 is a wasteful number, since it uses less digits than its factorization.

77004045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8809 (or 8806 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 77004045 is about 8775.1948696311. The cubic root of 77004045 is about 425.4395360468.

The spelling of 77004045 in words is "seventy-seven million, four thousand, forty-five".