3491437 has 12 divisors (see below), whose sum is σ = 3749248. Its totient is φ = 3247200.

The previous prime is 3491429. The next prime is 3491441. The reversal of 3491437 is 7341943.

It is not a de Polignac number, because 3491437 - 2³ = 3491429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3491399 and 3491408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3491447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52078 + ... + 52144.

Almost surely, 2^3491437 is an apocalyptic number.

It is an amenable number.

3491437 is a deficient number, since it is larger than the sum of its proper divisors (257811).

3491437 is an equidigital number, since it uses as much as digits as its factorization.

3491437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 139 counting only the distinct ones).

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

The square root of 3491437 is about 1868.5387338774. The cubic root of 3491437 is about 151.7055269474.

The spelling of 3491437 in words is "three million, four hundred ninety-one thousand, four hundred thirty-seven".