3891124 has 12 divisors (see below), whose sum is σ = 7168000. Its totient is φ = 1843128.

The previous prime is 3891103. The next prime is 3891131. The reversal of 3891124 is 4211983.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3891092 and 3891101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25524 + ... + 25675.

Almost surely, 2^3891124 is an apocalyptic number.

It is an amenable number.

3891124 is a deficient number, since it is larger than the sum of its proper divisors (3276876).

3891124 is a wasteful number, since it uses less digits than its factorization.

3891124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51222 (or 51220 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 3891124 is about 1972.5932170623. The cubic root of 3891124 is about 157.2865875841.

The spelling of 3891124 in words is "three million, eight hundred ninety-one thousand, one hundred twenty-four".