3698981 has 8 divisors (see below), whose sum is σ = 4345824. Its totient is φ = 3103920.

The previous prime is 3698969. The next prime is 3698999. The reversal of 3698981 is 1898963.

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 3698981 - 2⁶ = 3698917 is a prime.

It is a super-2 number, since 2×3698981² = 27364920876722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3698941) 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, 12791 + ... + 13076.

It is an arithmetic number, because the mean of its divisors is an integer number (543228).

Almost surely, 2^3698981 is an apocalyptic number.

It is an amenable number.

3698981 is a deficient number, since it is larger than the sum of its proper divisors (646843).

3698981 is a wasteful number, since it uses less digits than its factorization.

3698981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25891.

The product of its digits is 93312, while the sum is 44.

The square root of 3698981 is about 1923.2735114902. The cubic root of 3698981 is about 154.6538372690.

The spelling of 3698981 in words is "three million, six hundred ninety-eight thousand, nine hundred eighty-one".