3808691 has 4 divisors (see below), whose sum is σ = 3931584. Its totient is φ = 3685800.

The previous prime is 3808667. The next prime is 3808709. The reversal of 3808691 is 1968083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1968083 = 13 ⋅151391.

It is a cyclic number.

It is not a de Polignac number, because 3808691 - 2¹⁴ = 3792307 is a prime.

It is a super-2 number, since 2×3808691² = 29012254266962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3808591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61400 + ... + 61461.

It is an arithmetic number, because the mean of its divisors is an integer number (982896).

Almost surely, 2^3808691 is an apocalyptic number.

3808691 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3808691 is a deficient number, since it is larger than the sum of its proper divisors (122893).

3808691 is a wasteful number, since it uses less digits than its factorization.

3808691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122892.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 3808691 is about 1951.5867902812. The cubic root of 3808691 is about 156.1679513762.

The spelling of 3808691 in words is "three million, eight hundred eight thousand, six hundred ninety-one".