1056649 has 4 divisors (see below), whose sum is σ = 1152720. Its totient is φ = 960580.

The previous prime is 1056641. The next prime is 1056659. The reversal of 1056649 is 9466501.

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 1056649 - 2³ = 1056641 is a prime.

It is a super-2 number, since 2×1056649² = 2233014218402, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056649.

It is not an unprimeable number, because it can be changed into a prime (1056641) 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, 48019 + ... + 48040.

It is an arithmetic number, because the mean of its divisors is an integer number (288180).

2^1056649 is an apocalyptic number.

It is an amenable number.

1056649 is a deficient number, since it is larger than the sum of its proper divisors (96071).

1056649 is an equidigital number, since it uses as much as digits as its factorization.

1056649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96070.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1056649 is about 1027.9343364243. The cubic root of 1056649 is about 101.8537247153.

The spelling of 1056649 in words is "one million, fifty-six thousand, six hundred forty-nine".