771882946 has 4 divisors (see below), whose sum is σ = 1157824422. Its totient is φ = 385941472.

The previous prime is 771882941. The next prime is 771882949. The reversal of 771882946 is 649288177.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649288177 = 41 ⋅15836297.

It can be written as a sum of positive squares in only one way, i.e., 566963721 + 204919225 = 23811^2 + 14315^2 .

It is a junction number, because it is equal to n+sod(n) for n = 771882893 and 771882902.

It is not an unprimeable number, because it can be changed into a prime (771882941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192970735 + ... + 192970738.

Almost surely, 2^771882946 is an apocalyptic number.

771882946 is a deficient number, since it is larger than the sum of its proper divisors (385941476).

771882946 is a wasteful number, since it uses less digits than its factorization.

771882946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385941475.

The product of its digits is 1354752, while the sum is 52.

The square root of 771882946 is about 27782.7814662247. The cubic root of 771882946 is about 917.3121557102.

The spelling of 771882946 in words is "seven hundred seventy-one million, eight hundred eighty-two thousand, nine hundred forty-six".