3745631 has 2 divisors, whose sum is σ = 3745632. Its totient is φ = 3745630.

The previous prime is 3745613. The next prime is 3745649. The reversal of 3745631 is 1365473.

Together with previous prime (3745613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (3745613) and next prime (3745649).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3745631 is a prime.

It is a super-2 number, since 2×3745631² = 28059503176322, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3745594 and 3745603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3745691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1872815 + 1872816.

It is an arithmetic number, because the mean of its divisors is an integer number (1872816).

Almost surely, 2^3745631 is an apocalyptic number.

3745631 is a deficient number, since it is larger than the sum of its proper divisors (1).

3745631 is an equidigital number, since it uses as much as digits as its factorization.

3745631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 29.

The square root of 3745631 is about 1935.3632733934. The cubic root of 3745631 is about 155.3012663006.

The spelling of 3745631 in words is "three million, seven hundred forty-five thousand, six hundred thirty-one".