2564093947 has 8 divisors (see below), whose sum is σ = 2743294160. Its totient is φ = 2389318560.

The previous prime is 2564093927. The next prime is 2564093951. The reversal of 2564093947 is 7493904652.

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 2564093947 - 2¹¹ = 2564091899 is a prime.

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 2564093947.

It is not an unprimeable number, because it can be changed into a prime (2564093927) 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, 1105008 + ... + 1107325.

It is an arithmetic number, because the mean of its divisors is an integer number (342911770).

Almost surely, 2^2564093947 is an apocalyptic number.

2564093947 is a deficient number, since it is larger than the sum of its proper divisors (179200213).

2564093947 is a wasteful number, since it uses less digits than its factorization.

2564093947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2212413.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The square root of 2564093947 is about 50636.8832670416. The cubic root of 2564093947 is about 1368.7095930136.

The spelling of 2564093947 in words is "two billion, five hundred sixty-four million, ninety-three thousand, nine hundred forty-seven".