1056287647 has 4 divisors (see below), whose sum is σ = 1080852520. Its totient is φ = 1031722776.

The previous prime is 1056287641. The next prime is 1056287681. The reversal of 1056287647 is 7467826501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7467826501 = 9391 ⋅795211.

It is a cyclic number.

It is not a de Polignac number, because 1056287647 - 2¹⁵ = 1056254879 is a prime.

It is a super-2 number, since 2×1056287647² = 2231487186409593218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1056287597 and 1056287606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056287641) 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, 12282372 + ... + 12282457.

It is an arithmetic number, because the mean of its divisors is an integer number (270213130).

Almost surely, 2^1056287647 is an apocalyptic number.

1056287647 is a deficient number, since it is larger than the sum of its proper divisors (24564873).

1056287647 is an equidigital number, since it uses as much as digits as its factorization.

1056287647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24564872.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 1056287647 is about 32500.5791794546. The cubic root of 1056287647 is about 1018.4211274028.

The spelling of 1056287647 in words is "one billion, fifty-six million, two hundred eighty-seven thousand, six hundred forty-seven".