336661 has 16 divisors (see below), whose sum is σ = 403200. Its totient is φ = 278208.

The previous prime is 336653. The next prime is 336667. The reversal of 336661 is 166633.

336661 = 124² + 125² + ... + 142².

It is a cyclic number.

It is not a de Polignac number, because 336661 - 2³ = 336653 is a prime.

It is a super-2 number, since 2×336661² = 226681257842, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

Its product of digits (1944) is a multiple of the sum of its prime divisors (108).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (336667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7140 + ... + 7186.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2³³⁶⁶⁶¹ is an apocalyptic number.

It is an amenable number.

336661 is a deficient number, since it is larger than the sum of its proper divisors (66539).

336661 is a wasteful number, since it uses less digits than its factorization.

336661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108.

The product of its digits is 1944, while the sum is 25.

The square root of 336661 is about 580.2249563747. The cubic root of 336661 is about 69.5660914009.

The spelling of 336661 in words is "three hundred thirty-six thousand, six hundred sixty-one".