3157966 has 8 divisors (see below), whose sum is σ = 5413680. Its totient is φ = 1353408.

The previous prime is 3157961. The next prime is 3157981. The reversal of 3157966 is 6697513.

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 (3157961) 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, 112771 + ... + 112798.

It is an arithmetic number, because the mean of its divisors is an integer number (676710).

Almost surely, 2^3157966 is an apocalyptic number.

3157966 is a deficient number, since it is larger than the sum of its proper divisors (2255714).

3157966 is a wasteful number, since it uses less digits than its factorization.

3157966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225578.

The product of its digits is 34020, while the sum is 37.

The square root of 3157966 is about 1777.0666841737. The cubic root of 3157966 is about 146.7131865747.

It can be divided in two parts, 315 and 7966, that added together give a square (8281 = 91²).

The spelling of 3157966 in words is "three million, one hundred fifty-seven thousand, nine hundred sixty-six".