3666498 has 32 divisors (see below), whose sum is σ = 8119872. Its totient is φ = 1094400.

The previous prime is 3666493. The next prime is 3666521. The reversal of 3666498 is 8946663.

It is not an unprimeable number, because it can be changed into a prime (3666493) 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, 4438 + ... + 5198.

It is an arithmetic number, because the mean of its divisors is an integer number (253746).

Almost surely, 2^3666498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3666498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4059936).

3666498 is an abundant number, since it is smaller than the sum of its proper divisors (4453374).

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

3666498 is a wasteful number, since it uses less digits than its factorization.

3666498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850.

The product of its digits is 186624, while the sum is 42.

The square root of 3666498 is about 1914.8101733592. The cubic root of 3666498 is about 154.1998025033.

The spelling of 3666498 in words is "three million, six hundred sixty-six thousand, four hundred ninety-eight".