632685749 has 2 divisors, whose sum is σ = 632685750. Its totient is φ = 632685748.

The previous prime is 632685707. The next prime is 632685761. The reversal of 632685749 is 947586236.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504316849 + 128368900 = 22457^2 + 11330^2 .

It is a cyclic number.

It is not a de Polignac number, because 632685749 - 2¹² = 632681653 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 632685697 and 632685706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (632685349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316342874 + 316342875.

It is an arithmetic number, because the mean of its divisors is an integer number (316342875).

Almost surely, 2^632685749 is an apocalyptic number.

It is an amenable number.

632685749 is a deficient number, since it is larger than the sum of its proper divisors (1).

632685749 is an equidigital number, since it uses as much as digits as its factorization.

632685749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 50.

The square root of 632685749 is about 25153.2452975754. The cubic root of 632685749 is about 858.4783571295.

The spelling of 632685749 in words is "six hundred thirty-two million, six hundred eighty-five thousand, seven hundred forty-nine".