77795039 has 16 divisors (see below), whose sum is σ = 93477888. Its totient is φ = 63298752.

The previous prime is 77795033. The next prime is 77795057. The reversal of 77795039 is 93059777.

It is a cyclic number.

It is not a de Polignac number, because 77795039 - 2¹⁶ = 77729503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77794984 and 77795002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77795033) 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, 20294 + ... + 23820.

It is an arithmetic number, because the mean of its divisors is an integer number (5842368).

Almost surely, 2^77795039 is an apocalyptic number.

77795039 is a deficient number, since it is larger than the sum of its proper divisors (15682849).

77795039 is a wasteful number, since it uses less digits than its factorization.

77795039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694.

The product of its (nonzero) digits is 416745, while the sum is 47.

The square root of 77795039 is about 8820.1496019059. The cubic root of 77795039 is about 426.8912969861.

The spelling of 77795039 in words is "seventy-seven million, seven hundred ninety-five thousand, thirty-nine".