771320433 has 32 divisors (see below), whose sum is σ = 1163264256. Its totient is φ = 451047168.

The previous prime is 771320419. The next prime is 771320441. The reversal of 771320433 is 334023177.

It is not a de Polignac number, because 771320433 - 2⁸ = 771320177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 771320433.

It is not an unprimeable number, because it can be changed into a prime (771320443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138091 + ... + 143567.

It is an arithmetic number, because the mean of its divisors is an integer number (36352008).

Almost surely, 2^771320433 is an apocalyptic number.

It is an amenable number.

771320433 is a deficient number, since it is larger than the sum of its proper divisors (391943823).

771320433 is a wasteful number, since it uses less digits than its factorization.

771320433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5673.

The product of its (nonzero) digits is 10584, while the sum is 30.

The square root of 771320433 is about 27772.6562107408. The cubic root of 771320433 is about 917.0892698387.

The spelling of 771320433 in words is "seven hundred seventy-one million, three hundred twenty thousand, four hundred thirty-three".