3537891 has 16 divisors (see below), whose sum is σ = 5990400. Its totient is φ = 2021544.

The previous prime is 3537871. The next prime is 3537899. The reversal of 3537891 is 1987353.

It is not a de Polignac number, because 3537891 - 2⁶ = 3537827 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3537899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9171 + ... + 9548.

It is an arithmetic number, because the mean of its divisors is an integer number (374400).

Almost surely, 2^3537891 is an apocalyptic number.

3537891 is a deficient number, since it is larger than the sum of its proper divisors (2452509).

3537891 is a wasteful number, since it uses less digits than its factorization.

3537891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18735 (or 18729 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 3537891 is about 1880.9282282958. The cubic root of 3537891 is about 152.3753850753.

The spelling of 3537891 in words is "three million, five hundred thirty-seven thousand, eight hundred ninety-one".