3641831 has 2 divisors, whose sum is σ = 3641832. Its totient is φ = 3641830.

The previous prime is 3641819. The next prime is 3641851. The reversal of 3641831 is 1381463.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3641831 - 2⁶ = 3641767 is a prime.

It is a super-2 number, since 2×3641831² = 26525866065122, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3641831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3641801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1820915 + 1820916.

It is an arithmetic number, because the mean of its divisors is an integer number (1820916).

Almost surely, 2^3641831 is an apocalyptic number.

3641831 is a deficient number, since it is larger than the sum of its proper divisors (1).

3641831 is an equidigital number, since it uses as much as digits as its factorization.

3641831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 3641831 is about 1908.3581948890. The cubic root of 3641831 is about 153.8532221560.

The spelling of 3641831 in words is "three million, six hundred forty-one thousand, eight hundred thirty-one".