3698969 has 2 divisors, whose sum is σ = 3698970. Its totient is φ = 3698968.

The previous prime is 3698963. The next prime is 3698999. The reversal of 3698969 is 9698963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2521744 + 1177225 = 1588^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 3698969 - 2⁴ = 3698953 is a prime.

It is a super-2 number, since 2×3698969² = 27364743325922, which contains 22 as substring.

It is a Chen prime.

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

It is not a weakly prime, because it can be changed into another prime (3698963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1849484 + 1849485.

It is an arithmetic number, because the mean of its divisors is an integer number (1849485).

Almost surely, 2^3698969 is an apocalyptic number.

It is an amenable number.

3698969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3698969 is an equidigital number, since it uses as much as digits as its factorization.

3698969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 50.

The square root of 3698969 is about 1923.2703918066. The cubic root of 3698969 is about 154.6536700294.

The spelling of 3698969 in words is "three million, six hundred ninety-eight thousand, nine hundred sixty-nine".