2164970 has 16 divisors (see below), whose sum is σ = 3925800. Its totient is φ = 859584.

The previous prime is 2164963. The next prime is 2164979. The reversal of 2164970 is 794612.

It can be written as a sum of positive squares in 4 ways, for example, as 1885129 + 279841 = 1373^2 + 529^2 .

It is not an unprimeable number, because it can be changed into a prime (2164979) 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, 764 + ... + 2216.

2^2164970 is an apocalyptic number.

2164970 is a deficient number, since it is larger than the sum of its proper divisors (1760830).

2164970 is a wasteful number, since it uses less digits than its factorization.

2164970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2164970 is about 1471.3837025059. The cubic root of 2164970 is about 129.3651493507.

The spelling of 2164970 in words is "two million, one hundred sixty-four thousand, nine hundred seventy".