1056290817 has 8 divisors (see below), whose sum is σ = 1413868896. Its totient is φ = 701453312.

The previous prime is 1056290789. The next prime is 1056290827. The reversal of 1056290817 is 7180926501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1056290817 - 2¹⁹ = 1055766529 is a prime.

It is a super-2 number, since 2×1056290817² = 2231500580157054978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056290827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684243 + ... + 685784.

It is an arithmetic number, because the mean of its divisors is an integer number (176733612).

Almost surely, 2^1056290817 is an apocalyptic number.

It is an amenable number.

1056290817 is a deficient number, since it is larger than the sum of its proper divisors (357578079).

1056290817 is a wasteful number, since it uses less digits than its factorization.

1056290817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1370287.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 1056290817 is about 32500.6279477797. The cubic root of 1056290817 is about 1018.4221461883.

The spelling of 1056290817 in words is "one billion, fifty-six million, two hundred ninety thousand, eight hundred seventeen".