722678948 has 6 divisors (see below), whose sum is σ = 1264688166. Its totient is φ = 361339472.

The previous prime is 722678911. The next prime is 722678969. The reversal of 722678948 is 849876227.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 722104384 + 574564 = 26872^2 + 758^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 722678948.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90334865 + ... + 90334872.

It is an arithmetic number, because the mean of its divisors is an integer number (210781361).

Almost surely, 2^722678948 is an apocalyptic number.

It is an amenable number.

722678948 is a deficient number, since it is larger than the sum of its proper divisors (542009218).

722678948 is a wasteful number, since it uses less digits than its factorization.

722678948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180669741 (or 180669739 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 722678948 is about 26882.6886304179. The cubic root of 722678948 is about 897.3911892356.

The spelling of 722678948 in words is "seven hundred twenty-two million, six hundred seventy-eight thousand, nine hundred forty-eight".