77930045 has 16 divisors (see below), whose sum is σ = 95325120. Its totient is φ = 61146624.

The previous prime is 77930033. The next prime is 77930051. The reversal of 77930045 is 54003977.

It is a cyclic number.

It is not a de Polignac number, because 77930045 - 2¹⁸ = 77667901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77929987 and 77930014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117926 + ... + 118584.

It is an arithmetic number, because the mean of its divisors is an integer number (5957820).

Almost surely, 2^77930045 is an apocalyptic number.

It is an amenable number.

77930045 is a deficient number, since it is larger than the sum of its proper divisors (17395075).

77930045 is a wasteful number, since it uses less digits than its factorization.

77930045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 77930045 is about 8827.7995559482. The cubic root of 77930045 is about 427.1380975553.

The spelling of 77930045 in words is "seventy-seven million, nine hundred thirty thousand, forty-five".