764971951 has 2 divisors, whose sum is σ = 764971952. Its totient is φ = 764971950.

The previous prime is 764971847. The next prime is 764972023. The reversal of 764971951 is 159179467.

It is a strong prime.

It is an emirp because it is prime and its reverse (159179467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 764971951 - 2⁹ = 764971439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 764971895 and 764971904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764971351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382485975 + 382485976.

It is an arithmetic number, because the mean of its divisors is an integer number (382485976).

Almost surely, 2^764971951 is an apocalyptic number.

764971951 is a deficient number, since it is larger than the sum of its proper divisors (1).

764971951 is an equidigital number, since it uses as much as digits as its factorization.

764971951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 49.

The square root of 764971951 is about 27658.1263103631. The cubic root of 764971951 is about 914.5662494704.

The spelling of 764971951 in words is "seven hundred sixty-four million, nine hundred seventy-one thousand, nine hundred fifty-one".