361720867 has 4 divisors (see below), whose sum is σ = 361789200. Its totient is φ = 361652536.

The previous prime is 361720837. The next prime is 361720871. The reversal of 361720867 is 768027163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768027163 = 479 ⋅1603397.

It is a cyclic number.

It is not a de Polignac number, because 361720867 - 2²⁷ = 227503139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361720817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25492 + ... + 37057.

It is an arithmetic number, because the mean of its divisors is an integer number (90447300).

Almost surely, 2^361720867 is an apocalyptic number.

361720867 is a deficient number, since it is larger than the sum of its proper divisors (68333).

361720867 is an equidigital number, since it uses as much as digits as its factorization.

361720867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68332.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 361720867 is about 19018.9607234465. The cubic root of 361720867 is about 712.5103670185.

The spelling of 361720867 in words is "three hundred sixty-one million, seven hundred twenty thousand, eight hundred sixty-seven".