3666398 has 8 divisors (see below), whose sum is σ = 5548608. Its totient is φ = 1816864.

The previous prime is 3666371. The next prime is 3666409. The reversal of 3666398 is 8936663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7886 + ... + 8337.

It is an arithmetic number, because the mean of its divisors is an integer number (693576).

Almost surely, 2^3666398 is an apocalyptic number.

3666398 is a deficient number, since it is larger than the sum of its proper divisors (1882210).

3666398 is a wasteful number, since it uses less digits than its factorization.

3666398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16338.

The product of its digits is 139968, while the sum is 41.

The square root of 3666398 is about 1914.7840609322. The cubic root of 3666398 is about 154.1984006097.

The spelling of 3666398 in words is "three million, six hundred sixty-six thousand, three hundred ninety-eight".