721292068 has 12 divisors (see below), whose sum is σ = 1442584192. Its totient is φ = 309125160.

The previous prime is 721292021. The next prime is 721292071. The reversal of 721292068 is 860292127.

721292068 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

721292068 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12880188 + ... + 12880243.

Almost surely, 2^721292068 is an apocalyptic number.

It is an amenable number.

721292068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

721292068 is a wasteful number, since it uses less digits than its factorization.

721292068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25760442 (or 25760440 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 721292068 is about 26856.8812038926. The cubic root of 721292068 is about 896.8167659309.

The spelling of 721292068 in words is "seven hundred twenty-one million, two hundred ninety-two thousand, sixty-eight".