361889 has 8 divisors (see below), whose sum is σ = 399168. Its totient is φ = 325360.

The previous prime is 361877. The next prime is 361901. The reversal of 361889 is 988163.

It is an interprime number because it is at equal distance from previous prime (361877) and next prime (361901).

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 361889 - 2⁴ = 361873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (361789) 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, 1739 + ... + 1935.

It is an arithmetic number, because the mean of its divisors is an integer number (49896).

2³⁶¹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

361889 is a deficient number, since it is larger than the sum of its proper divisors (37279).

361889 is a wasteful number, since it uses less digits than its factorization.

361889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its digits is 10368, while the sum is 35.

The square root of 361889 is about 601.5721070661. The cubic root of 361889 is about 71.2620744900.

The spelling of 361889 in words is "three hundred sixty-one thousand, eight hundred eighty-nine".