361878 has 16 divisors (see below), whose sum is σ = 789696. Its totient is φ = 109640.

The previous prime is 361877. The next prime is 361901. The reversal of 361878 is 878163.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361878.

It is not an unprimeable number, because it can be changed into a prime (361871) 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, 2676 + ... + 2807.

It is an arithmetic number, because the mean of its divisors is an integer number (49356).

2³⁶¹⁸⁷⁸ is an apocalyptic number.

361878 is an abundant number, since it is smaller than the sum of its proper divisors (427818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361878 is a wasteful number, since it uses less digits than its factorization.

361878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499.

The product of its digits is 8064, while the sum is 33.

The square root of 361878 is about 601.5629642855. The cubic root of 361878 is about 71.2613524539.

The spelling of 361878 in words is "three hundred sixty-one thousand, eight hundred seventy-eight".