770499139 has 2 divisors, whose sum is σ = 770499140. Its totient is φ = 770499138.

The previous prime is 770499133. The next prime is 770499151. The reversal of 770499139 is 931994077.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 770499139 - 2¹³ = 770490947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 770499092 and 770499101.

It is not a weakly prime, because it can be changed into another prime (770499133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385249569 + 385249570.

It is an arithmetic number, because the mean of its divisors is an integer number (385249570).

Almost surely, 2^770499139 is an apocalyptic number.

770499139 is a deficient number, since it is larger than the sum of its proper divisors (1).

770499139 is an equidigital number, since it uses as much as digits as its factorization.

770499139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 770499139 is about 27757.8662544512. The cubic root of 770499139 is about 916.7636518578.

The spelling of 770499139 in words is "seven hundred seventy million, four hundred ninety-nine thousand, one hundred thirty-nine".