2157673 has 8 divisors (see below), whose sum is σ = 2478080. Its totient is φ = 1840320.

The previous prime is 2157671. The next prime is 2157677. The reversal of 2157673 is 3767512.

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

It is a cyclic number.

It is not a de Polignac number, because 2157673 - 2¹ = 2157671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2157671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1048 + ... + 2326.

It is an arithmetic number, because the mean of its divisors is an integer number (309760).

2^2157673 is an apocalyptic number.

It is an amenable number.

2157673 is a deficient number, since it is larger than the sum of its proper divisors (320407).

2157673 is a wasteful number, since it uses less digits than its factorization.

2157673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527.

The product of its digits is 8820, while the sum is 31.

The square root of 2157673 is about 1468.9019708612. The cubic root of 2157673 is about 129.2196446341.

The spelling of 2157673 in words is "two million, one hundred fifty-seven thousand, six hundred seventy-three".