361799917 has 8 divisors (see below), whose sum is σ = 364404024. Its totient is φ = 359202048.

The previous prime is 361799909. The next prime is 361799927. The reversal of 361799917 is 719997163.

It can be written as a sum of positive squares in 4 ways, for example, as 38303721 + 323496196 = 6189^2 + 17986^2 .

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 361799917 - 2³ = 361799909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361799927) 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 in 7 ways as a sum of consecutive naturals, for example, 205513 + ... + 207265.

It is an arithmetic number, because the mean of its divisors is an integer number (45550503).

Almost surely, 2^361799917 is an apocalyptic number.

It is an amenable number.

361799917 is a deficient number, since it is larger than the sum of its proper divisors (2604107).

361799917 is a wasteful number, since it uses less digits than its factorization.

361799917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3119.

The product of its digits is 642978, while the sum is 52.

The square root of 361799917 is about 19021.0387991823. The cubic root of 361799917 is about 712.5622669292.

The spelling of 361799917 in words is "three hundred sixty-one million, seven hundred ninety-nine thousand, nine hundred seventeen".