3974231 has 4 divisors (see below), whose sum is σ = 4102464. Its totient is φ = 3846000.

The previous prime is 3974227. The next prime is 3974237. The reversal of 3974231 is 1324793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1324793 = 17 ⋅77929.

It is a cyclic number.

It is not a de Polignac number, because 3974231 - 2² = 3974227 is a prime.

It is a super-2 number, since 2×3974231² = 31589024082722, 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 = 3974194 and 3974203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974237) 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, 64070 + ... + 64131.

It is an arithmetic number, because the mean of its divisors is an integer number (1025616).

Almost surely, 2^3974231 is an apocalyptic number.

3974231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3974231 is a deficient number, since it is larger than the sum of its proper divisors (128233).

3974231 is a wasteful number, since it uses less digits than its factorization.

3974231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128232.

The product of its digits is 4536, while the sum is 29.

The square root of 3974231 is about 1993.5473407973. The cubic root of 3974231 is about 158.3984894042.

The spelling of 3974231 in words is "three million, nine hundred seventy-four thousand, two hundred thirty-one".