77940683 has 2 divisors, whose sum is σ = 77940684. Its totient is φ = 77940682.

The previous prime is 77940673. The next prime is 77940697. The reversal of 77940683 is 38604977.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77940683 is a prime.

It is not a weakly prime, because it can be changed into another prime (77940673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38970341 + 38970342.

It is an arithmetic number, because the mean of its divisors is an integer number (38970342).

Almost surely, 2^77940683 is an apocalyptic number.

77940683 is a deficient number, since it is larger than the sum of its proper divisors (1).

77940683 is an equidigital number, since it uses as much as digits as its factorization.

77940683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 77940683 is about 8828.4020637939. The cubic root of 77940683 is about 427.1575324572.

The spelling of 77940683 in words is "seventy-seven million, nine hundred forty thousand, six hundred eighty-three".