77740936 has 32 divisors (see below), whose sum is σ = 179403840. Its totient is φ = 30754368.

The previous prime is 77740933. The next prime is 77740973. The reversal of 77740936 is 63904777.

It is a junction number, because it is equal to n+sod(n) for n = 77740892 and 77740901.

It is not an unprimeable number, because it can be changed into a prime (77740933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52666 + ... + 54121.

It is an arithmetic number, because the mean of its divisors is an integer number (5606370).

Almost surely, 2^77740936 is an apocalyptic number.

It is an amenable number.

77740936 is an abundant number, since it is smaller than the sum of its proper divisors (101662904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77740936 is a wasteful number, since it uses less digits than its factorization.

77740936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106813 (or 106809 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 77740936 is about 8817.0820570073. The cubic root of 77740936 is about 426.7923127136.

The spelling of 77740936 in words is "seventy-seven million, seven hundred forty thousand, nine hundred thirty-six".