632390069 has 2 divisors, whose sum is σ = 632390070. Its totient is φ = 632390068.

The previous prime is 632390047. The next prime is 632390107. The reversal of 632390069 is 960093236.

It is an a-pointer prime, because the next prime (632390107) can be obtained adding 632390069 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474586225 + 157803844 = 21785^2 + 12562^2 .

It is a cyclic number.

It is not a de Polignac number, because 632390069 - 2²⁴ = 615612853 is a prime.

It is a super-2 number, since 2×632390069² = 799834398739649522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (632392069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316195034 + 316195035.

It is an arithmetic number, because the mean of its divisors is an integer number (316195035).

Almost surely, 2^632390069 is an apocalyptic number.

It is an amenable number.

632390069 is a deficient number, since it is larger than the sum of its proper divisors (1).

632390069 is an equidigital number, since it uses as much as digits as its factorization.

632390069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 38.

The square root of 632390069 is about 25147.3670391156. The cubic root of 632390069 is about 858.3446022421.

The spelling of 632390069 in words is "six hundred thirty-two million, three hundred ninety thousand, sixty-nine".