3490999 has 4 divisors (see below), whose sum is σ = 3540240. Its totient is φ = 3441760.

The previous prime is 3490973. The next prime is 3491011. The reversal of 3490999 is 9990943.

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 3490999 - 2¹⁷ = 3359927 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 (3490939) 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, 24514 + ... + 24655.

It is an arithmetic number, because the mean of its divisors is an integer number (885060).

Almost surely, 2^3490999 is an apocalyptic number.

3490999 is a deficient number, since it is larger than the sum of its proper divisors (49241).

3490999 is an equidigital number, since it uses as much as digits as its factorization.

3490999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49240.

The product of its (nonzero) digits is 78732, while the sum is 43.

The square root of 3490999 is about 1868.4215263157. The cubic root of 3490999 is about 151.6991828738.

It can be divided in two parts, 3490 and 999, that added together give a square (4489 = 67²).

The spelling of 3490999 in words is "three million, four hundred ninety thousand, nine hundred ninety-nine".