3628831 has 4 divisors (see below), whose sum is σ = 3656664. Its totient is φ = 3601000.

The previous prime is 3628819. The next prime is 3628841. The reversal of 3628831 is 1388263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1388263 = 71 ⋅19553.

It is a cyclic number.

It is not a de Polignac number, because 3628831 - 2¹⁵ = 3596063 is a prime.

It is a super-2 number, since 2×3628831² = 26336828853122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3628793 and 3628802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3628811) 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, 13720 + ... + 13981.

It is an arithmetic number, because the mean of its divisors is an integer number (914166).

Almost surely, 2^3628831 is an apocalyptic number.

3628831 is a deficient number, since it is larger than the sum of its proper divisors (27833).

3628831 is a wasteful number, since it uses less digits than its factorization.

3628831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27832.

The product of its digits is 6912, while the sum is 31.

The square root of 3628831 is about 1904.9490806843. The cubic root of 3628831 is about 153.6699373849.

The spelling of 3628831 in words is "three million, six hundred twenty-eight thousand, eight hundred thirty-one".