2070646 has 4 divisors (see below), whose sum is σ = 3105972. Its totient is φ = 1035322.

The previous prime is 2070643. The next prime is 2070661. The reversal of 2070646 is 6460702.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2070646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070641) 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 as a sum of consecutive naturals, namely, 517660 + ... + 517663.

It is an arithmetic number, because the mean of its divisors is an integer number (776493).

2^2070646 is an apocalyptic number.

2070646 is a deficient number, since it is larger than the sum of its proper divisors (1035326).

2070646 is a wasteful number, since it uses less digits than its factorization.

2070646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035325.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2070646 is about 1438.9739400003. The cubic root of 2070646 is about 127.4584460253.

The spelling of 2070646 in words is "two million, seventy thousand, six hundred forty-six".