3538691 has 6 divisors (see below), whose sum is σ = 3832020. Its totient is φ = 3266328.

The previous prime is 3538687. The next prime is 3538697. The reversal of 3538691 is 1968353.

It is not a de Polignac number, because 3538691 - 2² = 3538687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3538697) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10301 + ... + 10638.

It is an arithmetic number, because the mean of its divisors is an integer number (638670).

Almost surely, 2^3538691 is an apocalyptic number.

3538691 is a deficient number, since it is larger than the sum of its proper divisors (293329).

3538691 is a wasteful number, since it uses less digits than its factorization.

3538691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20965 (or 20952 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 3538691 is about 1881.1408772338. The cubic root of 3538691 is about 152.3868694239.

The spelling of 3538691 in words is "three million, five hundred thirty-eight thousand, six hundred ninety-one".