77745794 has 16 divisors (see below), whose sum is σ = 141118848. Its totient is φ = 31359552.

The previous prime is 77745793. The next prime is 77745797. The reversal of 77745794 is 49754777.

It is not an unprimeable number, because it can be changed into a prime (77745793) 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, 163094 + ... + 163569.

It is an arithmetic number, because the mean of its divisors is an integer number (8819928).

Almost surely, 2^77745794 is an apocalyptic number.

77745794 is a deficient number, since it is larger than the sum of its proper divisors (63373054).

77745794 is a wasteful number, since it uses less digits than its factorization.

77745794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326689.

The product of its digits is 1728720, while the sum is 50.

The square root of 77745794 is about 8817.3575406694. The cubic root of 77745794 is about 426.8012025554.

The spelling of 77745794 in words is "seventy-seven million, seven hundred forty-five thousand, seven hundred ninety-four".