77360939 has 4 divisors (see below), whose sum is σ = 77610000. Its totient is φ = 77111880.

The previous prime is 77360923. The next prime is 77360953. The reversal of 77360939 is 93906377.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93906377 = 4003 ⋅23459.

It is a cyclic number.

It is not a de Polignac number, because 77360939 - 2⁴ = 77360923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77360939.

It is not an unprimeable number, because it can be changed into a prime (77360909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124064 + ... + 124685.

It is an arithmetic number, because the mean of its divisors is an integer number (19402500).

Almost surely, 2^77360939 is an apocalyptic number.

77360939 is a deficient number, since it is larger than the sum of its proper divisors (249061).

77360939 is a wasteful number, since it uses less digits than its factorization.

77360939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249060.

The product of its (nonzero) digits is 214326, while the sum is 44.

The square root of 77360939 is about 8795.5067506085. The cubic root of 77360939 is about 426.0957909445.

The spelling of 77360939 in words is "seventy-seven million, three hundred sixty thousand, nine hundred thirty-nine".