77365340 has 48 divisors (see below), whose sum is σ = 184185120. Its totient is φ = 27060480.

The previous prime is 77365339. The next prime is 77365349. The reversal of 77365340 is 4356377.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 77365340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77365349) 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, 2891 + ... + 12770.

It is an arithmetic number, because the mean of its divisors is an integer number (3837190).

Almost surely, 2^77365340 is an apocalyptic number.

It is an amenable number.

77365340 is an abundant number, since it is smaller than the sum of its proper divisors (106819780).

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

77365340 is a wasteful number, since it uses less digits than its factorization.

77365340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15702 (or 15700 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 77365340 is about 8795.7569316120. The cubic root of 77365340 is about 426.1038708706.

The spelling of 77365340 in words is "seventy-seven million, three hundred sixty-five thousand, three hundred forty".