369999979 has 2 divisors, whose sum is σ = 369999980. Its totient is φ = 369999978.

The previous prime is 369999947. The next prime is 370000003. The reversal of 369999979 is 979999963.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 369999979 - 2⁵ = 369999947 is a prime.

It is not a weakly prime, because it can be changed into another prime (369999379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184999989 + 184999990.

It is an arithmetic number, because the mean of its divisors is an integer number (184999990).

Almost surely, 2^369999979 is an apocalyptic number.

369999979 is a deficient number, since it is larger than the sum of its proper divisors (1).

369999979 is an equidigital number, since it uses as much as digits as its factorization.

369999979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66961566, while the sum is 70.

The square root of 369999979 is about 19235.3835158023. The cubic root of 369999979 is about 717.9054216248.

The spelling of 369999979 in words is "three hundred sixty-nine million, nine hundred ninety-nine thousand, nine hundred seventy-nine".