3698999 has 2 divisors, whose sum is σ = 3699000. Its totient is φ = 3698998.

The previous prime is 3698969. The next prime is 3699011. The reversal of 3698999 is 9998963.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3698999 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 6³ + 9 + 8⁷ + 9 + 9³ + 9⁴ .

It is a self number, because there is not a number n which added to its sum of digits gives 3698999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3698909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1849499 + 1849500.

It is an arithmetic number, because the mean of its divisors is an integer number (1849500).

Almost surely, 2^3698999 is an apocalyptic number.

3698999 is a deficient number, since it is larger than the sum of its proper divisors (1).

3698999 is an equidigital number, since it uses as much as digits as its factorization.

3698999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 944784, while the sum is 53.

The square root of 3698999 is about 1923.2781910062. The cubic root of 3698999 is about 154.6540881277.

The spelling of 3698999 in words is "three million, six hundred ninety-eight thousand, nine hundred ninety-nine".