2645707 has 4 divisors (see below), whose sum is σ = 2695680. Its totient is φ = 2595736.

The previous prime is 2645701. The next prime is 2645711. The reversal of 2645707 is 7075462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7075462 = 2 ⋅3537731.

It is a cyclic number.

It is not a de Polignac number, because 2645707 - 2¹¹ = 2643659 is a prime.

It is a Duffinian number.

2645707 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2645701) 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, 24907 + ... + 25012.

It is an arithmetic number, because the mean of its divisors is an integer number (673920).

2^2645707 is an apocalyptic number.

2645707 is a deficient number, since it is larger than the sum of its proper divisors (49973).

2645707 is an equidigital number, since it uses as much as digits as its factorization.

2645707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49972.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 2645707 is about 1626.5629406820. The cubic root of 2645707 is about 138.3079832905.

The spelling of 2645707 in words is "two million, six hundred forty-five thousand, seven hundred seven".