3747491 has 6 divisors (see below), whose sum is σ = 4119276. Its totient is φ = 3406700.

The previous prime is 3747479. The next prime is 3747521. The reversal of 3747491 is 1947473.

It is not a de Polignac number, because 3747491 - 2¹⁴ = 3731107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3747431) 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, 15365 + ... + 15606.

It is an arithmetic number, because the mean of its divisors is an integer number (686546).

Almost surely, 2^3747491 is an apocalyptic number.

3747491 is a deficient number, since it is larger than the sum of its proper divisors (371785).

3747491 is a wasteful number, since it uses less digits than its factorization.

3747491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30993 (or 30982 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 3747491 is about 1935.8437436942. The cubic root of 3747491 is about 155.3269684724.

The spelling of 3747491 in words is "three million, seven hundred forty-seven thousand, four hundred ninety-one".