3390887491 has 4 divisors (see below), whose sum is σ = 3425845192. Its totient is φ = 3355929792.

The previous prime is 3390887483. The next prime is 3390887537. The reversal of 3390887491 is 1947880933.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3390887491 - 2³ = 3390887483 is a prime.

It is a super-2 number, since 2×3390887491² = 22996235953240550162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3390887441) 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, 17478705 + ... + 17478898.

It is an arithmetic number, because the mean of its divisors is an integer number (856461298).

Almost surely, 2^3390887491 is an apocalyptic number.

3390887491 is a deficient number, since it is larger than the sum of its proper divisors (34957701).

3390887491 is an equidigital number, since it uses as much as digits as its factorization.

3390887491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34957700.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 3390887491 is about 58231.3274020093. The cubic root of 3390887491 is about 1502.3500187223.

The spelling of 3390887491 in words is "three billion, three hundred ninety million, eight hundred eighty-seven thousand, four hundred ninety-one".