77845996 has 24 divisors (see below), whose sum is σ = 139832000. Its totient is φ = 37899792.

The previous prime is 77845981. The next prime is 77845997. The reversal of 77845996 is 69954877.

It is not an unprimeable number, because it can be changed into a prime (77845997) 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, 85375 + ... + 86281.

Almost surely, 2^77845996 is an apocalyptic number.

It is an amenable number.

77845996 is a deficient number, since it is larger than the sum of its proper divisors (61986004).

77845996 is a wasteful number, since it uses less digits than its factorization.

77845996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453 (or 1451 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 55.

The square root of 77845996 is about 8823.0377988536. The cubic root of 77845996 is about 426.9844835281.

The spelling of 77845996 in words is "seventy-seven million, eight hundred forty-five thousand, nine hundred ninety-six".