3491251 has 4 divisors (see below), whose sum is σ = 3603904. Its totient is φ = 3378600.

The previous prime is 3491249. The next prime is 3491261. The reversal of 3491251 is 1521943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1521943 = 211 ⋅7213.

It is a cyclic number.

It is not a de Polignac number, because 3491251 - 2¹ = 3491249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3491261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56280 + ... + 56341.

It is an arithmetic number, because the mean of its divisors is an integer number (900976).

Almost surely, 2^3491251 is an apocalyptic number.

3491251 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3491251 is a deficient number, since it is larger than the sum of its proper divisors (112653).

3491251 is a wasteful number, since it uses less digits than its factorization.

3491251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112652.

The product of its digits is 1080, while the sum is 25.

The square root of 3491251 is about 1868.4889617014. The cubic root of 3491251 is about 151.7028329536.

It can be divided in two parts, 349 and 1251, that added together give a square (1600 = 40²).

The spelling of 3491251 in words is "three million, four hundred ninety-one thousand, two hundred fifty-one".