77345236 has 6 divisors (see below), whose sum is σ = 135354170. Its totient is φ = 38672616.

The previous prime is 77345231. The next prime is 77345239. The reversal of 77345236 is 63254377.

It can be written as a sum of positive squares in only one way, i.e., 59197636 + 18147600 = 7694^2 + 4260^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77345195 and 77345204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77345231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9668151 + ... + 9668158.

Almost surely, 2^77345236 is an apocalyptic number.

It is an amenable number.

77345236 is a deficient number, since it is larger than the sum of its proper divisors (58008934).

77345236 is a wasteful number, since it uses less digits than its factorization.

77345236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19336313 (or 19336311 counting only the distinct ones).

The product of its digits is 105840, while the sum is 37.

The square root of 77345236 is about 8794.6140336003. The cubic root of 77345236 is about 426.0669588445.

The spelling of 77345236 in words is "seventy-seven million, three hundred forty-five thousand, two hundred thirty-six".