632040217 has 2 divisors, whose sum is σ = 632040218. Its totient is φ = 632040216.

The previous prime is 632040191. The next prime is 632040251. The reversal of 632040217 is 712040236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 615238416 + 16801801 = 24804^2 + 4099^2 .

It is a cyclic number.

It is not a de Polignac number, because 632040217 - 2²⁷ = 497822489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 632040191 and 632040200.

It is not a weakly prime, because it can be changed into another prime (632040257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316020108 + 316020109.

It is an arithmetic number, because the mean of its divisors is an integer number (316020109).

Almost surely, 2^632040217 is an apocalyptic number.

It is an amenable number.

632040217 is a deficient number, since it is larger than the sum of its proper divisors (1).

632040217 is an equidigital number, since it uses as much as digits as its factorization.

632040217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 632040217 is about 25140.4100404110. The cubic root of 632040217 is about 858.1862880497.

The spelling of 632040217 in words is "six hundred thirty-two million, forty thousand, two hundred seventeen".