722978941 has 8 divisors (see below), whose sum is σ = 798790464. Its totient is φ = 650865600.

The previous prime is 722978923. The next prime is 722978969. The reversal of 722978941 is 149879227.

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

It is a cyclic number.

It is not a de Polignac number, because 722978941 - 2²³ = 714590333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722978041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 924135 + ... + 924916.

It is an arithmetic number, because the mean of its divisors is an integer number (99848808).

Almost surely, 2^722978941 is an apocalyptic number.

It is an amenable number.

722978941 is a deficient number, since it is larger than the sum of its proper divisors (75811523).

722978941 is a wasteful number, since it uses less digits than its factorization.

722978941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849091.

The product of its digits is 508032, while the sum is 49.

The square root of 722978941 is about 26888.2677203274. The cubic root of 722978941 is about 897.5153447976.

The spelling of 722978941 in words is "seven hundred twenty-two million, nine hundred seventy-eight thousand, nine hundred forty-one".