3437491 has 4 divisors (see below), whose sum is σ = 3444984. Its totient is φ = 3430000.

The previous prime is 3437477. The next prime is 3437501. The reversal of 3437491 is 1947343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1947343 = 751 ⋅2593.

It is a 4-Lehmer number, since φ(3437491) divides (3437491-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 3437491 - 2⁵ = 3437459 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3437431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3010 + ... + 3991.

It is an arithmetic number, because the mean of its divisors is an integer number (861246).

Almost surely, 2^3437491 is an apocalyptic number.

3437491 is a deficient number, since it is larger than the sum of its proper divisors (7493).

3437491 is an equidigital number, since it uses as much as digits as its factorization.

3437491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7492.

The product of its digits is 9072, while the sum is 31.

The square root of 3437491 is about 1854.0471946528. The cubic root of 3437491 is about 150.9201367076.

The spelling of 3437491 in words is "three million, four hundred thirty-seven thousand, four hundred ninety-one".