77407045 has 16 divisors (see below), whose sum is σ = 98965440. Its totient is φ = 57953664.

The previous prime is 77407039. The next prime is 77407049. The reversal of 77407045 is 54070477.

It is a cyclic number.

It is not a de Polignac number, because 77407045 - 2¹⁷ = 77275973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77407045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77407049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2977 + ... + 12793.

It is an arithmetic number, because the mean of its divisors is an integer number (6185340).

Almost surely, 2^77407045 is an apocalyptic number.

It is an amenable number.

77407045 is a deficient number, since it is larger than the sum of its proper divisors (21558395).

77407045 is a wasteful number, since it uses less digits than its factorization.

77407045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9924.

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 77407045 is about 8798.1273575688. The cubic root of 77407045 is about 426.1804231084.

The spelling of 77407045 in words is "seventy-seven million, four hundred seven thousand, forty-five".