721094722 has 8 divisors (see below), whose sum is σ = 1088278416. Its totient is φ = 358335252.

The previous prime is 721094719. The next prime is 721094741. The reversal of 721094722 is 227490127.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 1105648 + ... + 1106299.

It is an arithmetic number, because the mean of its divisors is an integer number (136034802).

Almost surely, 2^721094722 is an apocalyptic number.

721094722 is a deficient number, since it is larger than the sum of its proper divisors (367183694).

721094722 is a wasteful number, since it uses less digits than its factorization.

721094722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212112.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 721094722 is about 26853.2069220792. The cubic root of 721094722 is about 896.7349685782.

The spelling of 721094722 in words is "seven hundred twenty-one million, ninety-four thousand, seven hundred twenty-two".