361805997 has 8 divisors (see below), whose sum is σ = 551323456. Its totient is φ = 206746272.

The previous prime is 361805987. The next prime is 361806061. The reversal of 361805997 is 799508163.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 361805997 - 2⁴ = 361805981 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 (361805987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8614408 + ... + 8614449.

It is an arithmetic number, because the mean of its divisors is an integer number (68915432).

Almost surely, 2^361805997 is an apocalyptic number.

It is an amenable number.

361805997 is a deficient number, since it is larger than the sum of its proper divisors (189517459).

361805997 is a wasteful number, since it uses less digits than its factorization.

361805997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17228867.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 361805997 is about 19021.1986215380. The cubic root of 361805997 is about 712.5662584119.

The spelling of 361805997 in words is "three hundred sixty-one million, eight hundred five thousand, nine hundred ninety-seven".