3139998 has 8 divisors (see below), whose sum is σ = 6280008. Its totient is φ = 1046664.

The previous prime is 3139993. The next prime is 3140041. The reversal of 3139998 is 8999313.

It is a happy number.

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

3139998 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3139991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261661 + ... + 261672.

It is an arithmetic number, because the mean of its divisors is an integer number (785001).

Almost surely, 2^3139998 is an apocalyptic number.

3139998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3139998 is a wasteful number, since it uses less digits than its factorization.

3139998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523338.

The product of its digits is 52488, while the sum is 42.

The square root of 3139998 is about 1772.0039503342. The cubic root of 3139998 is about 146.4344039602.

The spelling of 3139998 in words is "three million, one hundred thirty-nine thousand, nine hundred ninety-eight".