722056859 has 2 divisors, whose sum is σ = 722056860. Its totient is φ = 722056858.

The previous prime is 722056799. The next prime is 722056873. The reversal of 722056859 is 958650227.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 722056859 - 2²⁸ = 453621403 is a prime.

It is a super-3 number, since 3×722056859³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (722056879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361028429 + 361028430.

It is an arithmetic number, because the mean of its divisors is an integer number (361028430).

Almost surely, 2^722056859 is an apocalyptic number.

722056859 is a deficient number, since it is larger than the sum of its proper divisors (1).

722056859 is an equidigital number, since it uses as much as digits as its factorization.

722056859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 722056859 is about 26871.1157006924. The cubic root of 722056859 is about 897.1336209890.

The spelling of 722056859 in words is "seven hundred twenty-two million, fifty-six thousand, eight hundred fifty-nine".