2066907 has 4 divisors (see below), whose sum is σ = 2755880. Its totient is φ = 1377936.

The previous prime is 2066903. The next prime is 2066923. The reversal of 2066907 is 7096602.

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

It is not a de Polignac number, because 2066907 - 2² = 2066903 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

2066907 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2066903) 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, 344482 + ... + 344487.

It is an arithmetic number, because the mean of its divisors is an integer number (688970).

2^2066907 is an apocalyptic number.

2066907 is a deficient number, since it is larger than the sum of its proper divisors (688973).

2066907 is an equidigital number, since it uses as much as digits as its factorization.

2066907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688972.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 2066907 is about 1437.6741633625. The cubic root of 2066907 is about 127.3816818551.

The spelling of 2066907 in words is "two million, sixty-six thousand, nine hundred seven".