77368445 has 32 divisors (see below), whose sum is σ = 122570496. Its totient is φ = 45388800.

The previous prime is 77368441. The next prime is 77368457. The reversal of 77368445 is 54486377.

It is not a de Polignac number, because 77368445 - 2² = 77368441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77368396 and 77368405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77368441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635 + ... + 12455.

It is an arithmetic number, because the mean of its divisors is an integer number (3830328).

Almost surely, 2^77368445 is an apocalyptic number.

It is an amenable number.

77368445 is a deficient number, since it is larger than the sum of its proper divisors (45202051).

77368445 is a wasteful number, since it uses less digits than its factorization.

77368445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11861.

The product of its digits is 564480, while the sum is 44.

The square root of 77368445 is about 8795.9334354007. The cubic root of 77368445 is about 426.1095712476.

The spelling of 77368445 in words is "seventy-seven million, three hundred sixty-eight thousand, four hundred forty-five".