2070665 has 8 divisors (see below), whose sum is σ = 2542848. Its totient is φ = 1617840.

The previous prime is 2070661. The next prime is 2070709. The reversal of 2070665 is 5660702.

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

It is not a de Polignac number, because 2070665 - 2² = 2070661 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4601 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (317856).

2^2070665 is an apocalyptic number.

It is an amenable number.

2070665 is a deficient number, since it is larger than the sum of its proper divisors (472183).

2070665 is an equidigital number, since it uses as much as digits as its factorization.

2070665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9679.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2070665 is about 1438.9805419115. The cubic root of 2070665 is about 127.4588358719.

The spelling of 2070665 in words is "two million, seventy thousand, six hundred sixty-five".