722277057 has 16 divisors (see below), whose sum is σ = 986230080. Its totient is φ = 470014272.

The previous prime is 722277041. The next prime is 722277109. The reversal of 722277057 is 750772227.

It is not a de Polignac number, because 722277057 - 2⁴ = 722277041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (722277757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19794 + ... + 42852.

It is an arithmetic number, because the mean of its divisors is an integer number (61639380).

Almost surely, 2^722277057 is an apocalyptic number.

It is an amenable number.

722277057 is a deficient number, since it is larger than the sum of its proper divisors (263953023).

722277057 is a wasteful number, since it uses less digits than its factorization.

722277057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23312.

The product of its (nonzero) digits is 96040, while the sum is 39.

The square root of 722277057 is about 26875.2126875305. The cubic root of 722277057 is about 897.2248081528.

The spelling of 722277057 in words is "seven hundred twenty-two million, two hundred seventy-seven thousand, fifty-seven".