3157982 has 8 divisors (see below), whose sum is σ = 4774656. Its totient is φ = 1566432.

The previous prime is 3157981. The next prime is 3157991. The reversal of 3157982 is 2897513.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3157981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5963 + ... + 6470.

It is an arithmetic number, because the mean of its divisors is an integer number (596832).

Almost surely, 2^3157982 is an apocalyptic number.

3157982 is a deficient number, since it is larger than the sum of its proper divisors (1616674).

3157982 is a wasteful number, since it uses less digits than its factorization.

3157982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12562.

The product of its digits is 15120, while the sum is 35.

The square root of 3157982 is about 1777.0711859686. The cubic root of 3157982 is about 146.7134343510.

The spelling of 3157982 in words is "three million, one hundred fifty-seven thousand, nine hundred eighty-two".