722814089 has 2 divisors, whose sum is σ = 722814090. Its totient is φ = 722814088.

The previous prime is 722814083. The next prime is 722814101. The reversal of 722814089 is 980418227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 512796025 + 210018064 = 22645^2 + 14492^2 .

It is a cyclic number.

It is not a de Polignac number, because 722814089 - 2¹² = 722809993 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (722814083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361407044 + 361407045.

It is an arithmetic number, because the mean of its divisors is an integer number (361407045).

Almost surely, 2^722814089 is an apocalyptic number.

It is an amenable number.

722814089 is a deficient number, since it is larger than the sum of its proper divisors (1).

722814089 is an equidigital number, since it uses as much as digits as its factorization.

722814089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 722814089 is about 26885.2020449912. The cubic root of 722814089 is about 897.4471231485.

The spelling of 722814089 in words is "seven hundred twenty-two million, eight hundred fourteen thousand, eighty-nine".