781048964 has 12 divisors (see below), whose sum is σ = 1367052288. Its totient is φ = 390462600.

The previous prime is 781048963. The next prime is 781048987. The reversal of 781048964 is 469840187.

781048964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×781048964² = 1220074968330946592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (781048963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24269 + ... + 46379.

It is an arithmetic number, because the mean of its divisors is an integer number (113921024).

Almost surely, 2^781048964 is an apocalyptic number.

It is an amenable number.

781048964 is a deficient number, since it is larger than the sum of its proper divisors (586003324).

781048964 is a wasteful number, since it uses less digits than its factorization.

781048964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30946 (or 30944 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 781048964 is about 27947.2532460705. The cubic root of 781048964 is about 920.9288681009.

The spelling of 781048964 in words is "seven hundred eighty-one million, forty-eight thousand, nine hundred sixty-four".