2064557 has 4 divisors (see below), whose sum is σ = 2252256. Its totient is φ = 1876860.

The previous prime is 2064551. The next prime is 2064571. The reversal of 2064557 is 7554602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2064557 - 2¹⁶ = 1999021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2064551) 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 3 ways as a sum of consecutive naturals, for example, 93833 + ... + 93854.

It is an arithmetic number, because the mean of its divisors is an integer number (563064).

2^2064557 is an apocalyptic number.

It is an amenable number.

2064557 is a deficient number, since it is larger than the sum of its proper divisors (187699).

2064557 is a wasteful number, since it uses less digits than its factorization.

2064557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187698.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 2064557 is about 1436.8566386387. The cubic root of 2064557 is about 127.3333873949. Note that the first 4 decimals are identical.

It can be divided in two parts, 20645 and 57, that added together give a palindrome (20702).

The spelling of 2064557 in words is "two million, sixty-four thousand, five hundred fifty-seven".