361813673 has 4 divisors (see below), whose sum is σ = 389645508. Its totient is φ = 333981840.

The previous prime is 361813663. The next prime is 361813681. The reversal of 361813673 is 376318163.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109893289 + 251920384 = 10483^2 + 15872^2 .

It is a cyclic number.

It is not a de Polignac number, because 361813673 - 2¹² = 361809577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361813603) 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, 13915898 + ... + 13915923.

It is an arithmetic number, because the mean of its divisors is an integer number (97411377).

Almost surely, 2^361813673 is an apocalyptic number.

It is an amenable number.

361813673 is a deficient number, since it is larger than the sum of its proper divisors (27831835).

361813673 is a wasteful number, since it uses less digits than its factorization.

361813673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27831834.

The product of its digits is 54432, while the sum is 38.

The square root of 361813673 is about 19021.4003953442. The cubic root of 361813673 is about 712.5712975949.

The spelling of 361813673 in words is "three hundred sixty-one million, eight hundred thirteen thousand, six hundred seventy-three".