784829972 has 12 divisors (see below), whose sum is σ = 1377842676. Its totient is φ = 391160640.

The previous prime is 784829971. The next prime is 784829993. The reversal of 784829972 is 279928487.

784829972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 295358596 + 489471376 = 17186^2 + 22124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (784829971) 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, 312179 + ... + 314682.

It is an arithmetic number, because the mean of its divisors is an integer number (114820223).

Almost surely, 2^784829972 is an apocalyptic number.

It is an amenable number.

784829972 is a deficient number, since it is larger than the sum of its proper divisors (593012704).

784829972 is a wasteful number, since it uses less digits than its factorization.

784829972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627178 (or 627176 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 56.

The square root of 784829972 is about 28014.8170081477. The cubic root of 784829972 is about 922.4125291191.

The spelling of 784829972 in words is "seven hundred eighty-four million, eight hundred twenty-nine thousand, nine hundred seventy-two".