2064651 has 4 divisors (see below), whose sum is σ = 2752872. Its totient is φ = 1376432.

The previous prime is 2064649. The next prime is 2064653. The reversal of 2064651 is 1564602.

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

It is an interprime number because it is at equal distance from previous prime (2064649) and next prime (2064653).

It is a cyclic number.

It is not a de Polignac number, because 2064651 - 2¹ = 2064649 is a prime.

It is a D-number.

2064651 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2064653) 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, 344106 + ... + 344111.

It is an arithmetic number, because the mean of its divisors is an integer number (688218).

2^2064651 is an apocalyptic number.

2064651 is a deficient number, since it is larger than the sum of its proper divisors (688221).

2064651 is an equidigital number, since it uses as much as digits as its factorization.

2064651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688220.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2064651 is about 1436.8893485582. The cubic root of 2064651 is about 127.3353198768.

The spelling of 2064651 in words is "two million, sixty-four thousand, six hundred fifty-one".