722872946 has 16 divisors (see below), whose sum is σ = 1149041376. Its totient is φ = 339894336.

The previous prime is 722872933. The next prime is 722872949. The reversal of 722872946 is 649278227.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 722872946.

It is not an unprimeable number, because it can be changed into a prime (722872949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36305 + ... + 52571.

It is an arithmetic number, because the mean of its divisors is an integer number (71815086).

Almost surely, 2^722872946 is an apocalyptic number.

722872946 is a deficient number, since it is larger than the sum of its proper divisors (426168430).

722872946 is a wasteful number, since it uses less digits than its factorization.

722872946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17593.

The product of its digits is 677376, while the sum is 47.

The square root of 722872946 is about 26886.2966211414. The cubic root of 722872946 is about 897.4714814690.

The spelling of 722872946 in words is "seven hundred twenty-two million, eight hundred seventy-two thousand, nine hundred forty-six".