3191427 has 24 divisors (see below), whose sum is σ = 5034800. Its totient is φ = 1997568.

The previous prime is 3191423. The next prime is 3191429. The reversal of 3191427 is 7241913.

It is not a de Polignac number, because 3191427 - 2² = 3191423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 3191427.

It is not an unprimeable number, because it can be changed into a prime (3191423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7599 + ... + 8007.

Almost surely, 2^3191427 is an apocalyptic number.

3191427 is a deficient number, since it is larger than the sum of its proper divisors (1843373).

3191427 is a wasteful number, since it uses less digits than its factorization.

3191427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 429 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 3191427 is about 1786.4565485900. The cubic root of 3191427 is about 147.2295455767.

The spelling of 3191427 in words is "three million, one hundred ninety-one thousand, four hundred twenty-seven".