632627321 has 2 divisors, whose sum is σ = 632627322. Its totient is φ = 632627320.

The previous prime is 632627311. The next prime is 632627327. The reversal of 632627321 is 123726236.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543589225 + 89038096 = 23315^2 + 9436^2 .

It is a cyclic number.

It is not a de Polignac number, because 632627321 - 2²² = 628433017 is a prime.

It is not a weakly prime, because it can be changed into another prime (632627327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316313660 + 316313661.

It is an arithmetic number, because the mean of its divisors is an integer number (316313661).

Almost surely, 2^632627321 is an apocalyptic number.

It is an amenable number.

632627321 is a deficient number, since it is larger than the sum of its proper divisors (1).

632627321 is an equidigital number, since it uses as much as digits as its factorization.

632627321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 32.

The square root of 632627321 is about 25152.0838301720. The cubic root of 632627321 is about 858.4519297297.

The spelling of 632627321 in words is "six hundred thirty-two million, six hundred twenty-seven thousand, three hundred twenty-one".