778583941 has 12 divisors (see below), whose sum is σ = 815912352. Its totient is φ = 742791000.

The previous prime is 778583917. The next prime is 778583977. The reversal of 778583941 is 149385877.

It is not a de Polignac number, because 778583941 - 2²⁷ = 644366213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778580941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62526 + ... + 73936.

It is an arithmetic number, because the mean of its divisors is an integer number (67992696).

Almost surely, 2^778583941 is an apocalyptic number.

778583941 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

778583941 is a deficient number, since it is larger than the sum of its proper divisors (37328411).

778583941 is a wasteful number, since it uses less digits than its factorization.

778583941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11544 (or 11513 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The square root of 778583941 is about 27903.1170481006. The cubic root of 778583941 is about 919.9590171567.

It can be divided in two parts, 77858 and 3941, that multiplied together give a triangular number (306838378 = T₂₄₇₇₂).

The spelling of 778583941 in words is "seven hundred seventy-eight million, five hundred eighty-three thousand, nine hundred forty-one".