6331491 has 6 divisors (see below), whose sum is σ = 9145500. Its totient is φ = 4220988.

The previous prime is 6331469. The next prime is 6331517. The reversal of 6331491 is 1941336.

It is not a de Polignac number, because 6331491 - 2¹³ = 6323299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6331411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 351741 + ... + 351758.

It is an arithmetic number, because the mean of its divisors is an integer number (1524250).

Almost surely, 2^6331491 is an apocalyptic number.

6331491 is a deficient number, since it is larger than the sum of its proper divisors (2814009).

6331491 is a wasteful number, since it uses less digits than its factorization.

6331491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703505 (or 703502 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 6331491 is about 2516.2454172835. The cubic root of 6331491 is about 184.9986949019.

The spelling of 6331491 in words is "six million, three hundred thirty-one thousand, four hundred ninety-one".