3765631 has 2 divisors, whose sum is σ = 3765632. Its totient is φ = 3765630.

The previous prime is 3765613. The next prime is 3765661. The reversal of 3765631 is 1365673.

Together with previous prime (3765613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3765631 - 2⁵ = 3765599 is a prime.

It is a super-2 number, since 2×3765631² = 28359953656322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3765593 and 3765602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3765611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1882815 + 1882816.

It is an arithmetic number, because the mean of its divisors is an integer number (1882816).

Almost surely, 2^3765631 is an apocalyptic number.

3765631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3765631 is an equidigital number, since it uses as much as digits as its factorization.

3765631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 31.

The square root of 3765631 is about 1940.5233830078. The cubic root of 3765631 is about 155.5771889603.

The spelling of 3765631 in words is "three million, seven hundred sixty-five thousand, six hundred thirty-one".