3403691 has 4 divisors (see below), whose sum is σ = 3426384. Its totient is φ = 3381000.

The previous prime is 3403681. The next prime is 3403703. The reversal of 3403691 is 1963043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1963043 = 73 ⋅26891.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3403691 is a prime.

It is a super-2 number, since 2×3403691² = 23170224846962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3403691.

It is not an unprimeable number, because it can be changed into a prime (3403601) 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, 11120 + ... + 11421.

It is an arithmetic number, because the mean of its divisors is an integer number (856596).

Almost surely, 2^3403691 is an apocalyptic number.

3403691 is a deficient number, since it is larger than the sum of its proper divisors (22693).

3403691 is a wasteful number, since it uses less digits than its factorization.

3403691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22692.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 3403691 is about 1844.9094828744. The cubic root of 3403691 is about 150.4238530477.

The spelling of 3403691 in words is "three million, four hundred three thousand, six hundred ninety-one".