712021589 has 2 divisors, whose sum is σ = 712021590. Its totient is φ = 712021588.

The previous prime is 712021579. The next prime is 712021643. The reversal of 712021589 is 985120217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 691164100 + 20857489 = 26290^2 + 4567^2 .

It is a cyclic number.

It is not a de Polignac number, because 712021589 - 2²⁴ = 695244373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712021579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356010794 + 356010795.

It is an arithmetic number, because the mean of its divisors is an integer number (356010795).

Almost surely, 2^712021589 is an apocalyptic number.

It is an amenable number.

712021589 is a deficient number, since it is larger than the sum of its proper divisors (1).

712021589 is an equidigital number, since it uses as much as digits as its factorization.

712021589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 712021589 is about 26683.7326661770. The cubic root of 712021589 is about 892.9580442487.

The spelling of 712021589 in words is "seven hundred twelve million, twenty-one thousand, five hundred eighty-nine".