3486991 has 8 divisors (see below), whose sum is σ = 3633104. Its totient is φ = 3343680.

The previous prime is 3486979. The next prime is 3486997. The reversal of 3486991 is 1996843.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3486991 - 2⁷ = 3486863 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3486997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2056 + ... + 3346.

It is an arithmetic number, because the mean of its divisors is an integer number (454138).

Almost surely, 2^3486991 is an apocalyptic number.

3486991 is a deficient number, since it is larger than the sum of its proper divisors (146113).

3486991 is a wasteful number, since it uses less digits than its factorization.

3486991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401.

The product of its digits is 46656, while the sum is 40.

The square root of 3486991 is about 1867.3486551793. The cubic root of 3486991 is about 151.6411055958.

It can be divided in two parts, 34 and 86991, that added together give a square (87025 = 295²).

The spelling of 3486991 in words is "three million, four hundred eighty-six thousand, nine hundred ninety-one".