3427631 has 4 divisors (see below), whose sum is σ = 3435000. Its totient is φ = 3420264.

The previous prime is 3427607. The next prime is 3427673. The reversal of 3427631 is 1367243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1367243 = 877 ⋅1559.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3427631 is a prime.

It is a super-2 number, since 2×3427631² = 23497308544322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3427631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3427691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2936 + ... + 3933.

It is an arithmetic number, because the mean of its divisors is an integer number (858750).

Almost surely, 2^3427631 is an apocalyptic number.

3427631 is a deficient number, since it is larger than the sum of its proper divisors (7369).

3427631 is an equidigital number, since it uses as much as digits as its factorization.

3427631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368.

The product of its digits is 3024, while the sum is 26.

The square root of 3427631 is about 1851.3862373908. The cubic root of 3427631 is about 150.7757001984.

The spelling of 3427631 in words is "three million, four hundred twenty-seven thousand, six hundred thirty-one".