369998669 has 2 divisors, whose sum is σ = 369998670. Its totient is φ = 369998668.

The previous prime is 369998639. The next prime is 369998689. The reversal of 369998669 is 966899963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252015625 + 117983044 = 15875^2 + 10862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-369998669 is a prime.

It is a super-2 number, since 2×369998669² = 273798030123543122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (369998639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184999334 + 184999335.

It is an arithmetic number, because the mean of its divisors is an integer number (184999335).

Almost surely, 2^369998669 is an apocalyptic number.

It is an amenable number.

369998669 is a deficient number, since it is larger than the sum of its proper divisors (1).

369998669 is an equidigital number, since it uses as much as digits as its factorization.

369998669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34012224, while the sum is 65.

The square root of 369998669 is about 19235.3494639427. The cubic root of 369998669 is about 717.9045743660.

The spelling of 369998669 in words is "three hundred sixty-nine million, nine hundred ninety-eight thousand, six hundred sixty-nine".