770136947 has 2 divisors, whose sum is σ = 770136948. Its totient is φ = 770136946.

The previous prime is 770136911. The next prime is 770136953. The reversal of 770136947 is 749631077.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 770136947 - 2⁶ = 770136883 is a prime.

It is a super-2 number, since 2×770136947² = 1186221834268961618, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 770136898 and 770136907.

It is not a weakly prime, because it can be changed into another prime (770136547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385068473 + 385068474.

It is an arithmetic number, because the mean of its divisors is an integer number (385068474).

Almost surely, 2^770136947 is an apocalyptic number.

770136947 is a deficient number, since it is larger than the sum of its proper divisors (1).

770136947 is an equidigital number, since it uses as much as digits as its factorization.

770136947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 770136947 is about 27751.3413549688. The cubic root of 770136947 is about 916.6199802706.

The spelling of 770136947 in words is "seven hundred seventy million, one hundred thirty-six thousand, nine hundred forty-seven".