722523437 has 2 divisors, whose sum is σ = 722523438. Its totient is φ = 722523436.

The previous prime is 722523419. The next prime is 722523463. The reversal of 722523437 is 734325227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 518290756 + 204232681 = 22766^2 + 14291^2 .

It is a cyclic number.

It is not a de Polignac number, because 722523437 - 2²⁰ = 721474861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 722523397 and 722523406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722523407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361261718 + 361261719.

It is an arithmetic number, because the mean of its divisors is an integer number (361261719).

Almost surely, 2^722523437 is an apocalyptic number.

It is an amenable number.

722523437 is a deficient number, since it is larger than the sum of its proper divisors (1).

722523437 is an equidigital number, since it uses as much as digits as its factorization.

722523437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 35.

The square root of 722523437 is about 26879.7960743753. The cubic root of 722523437 is about 897.3268156929.

The spelling of 722523437 in words is "seven hundred twenty-two million, five hundred twenty-three thousand, four hundred thirty-seven".