361664 has 14 divisors (see below), whose sum is σ = 717804. Its totient is φ = 180800.

The previous prime is 361663. The next prime is 361679. The reversal of 361664 is 466163.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 361664.

It is not an unprimeable number, because it can be changed into a prime (361663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2762 + ... + 2889.

2³⁶¹⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

361664 is a deficient number, since it is larger than the sum of its proper divisors (356140).

361664 is an equidigital number, since it uses as much as digits as its factorization.

361664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5663 (or 5653 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

The square root of 361664 is about 601.3850679889. The cubic root of 361664 is about 71.2473026577.

The spelling of 361664 in words is "three hundred sixty-one thousand, six hundred sixty-four".