247000885 has 4 divisors (see below), whose sum is σ = 296401068. Its totient is φ = 197600704.

The previous prime is 247000883. The next prime is 247000961. The reversal of 247000885 is 588000742.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32729841 + 214271044 = 5721^2 + 14638^2 .

It is a cyclic number.

It is not a de Polignac number, because 247000885 - 2¹ = 247000883 is a prime.

It is a super-2 number, since 2×247000885² = 122018874381566450, which contains 22 as substring.

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 247000885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247000883) 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, 24700084 + ... + 24700093.

It is an arithmetic number, because the mean of its divisors is an integer number (74100267).

Almost surely, 2^247000885 is an apocalyptic number.

It is an amenable number.

247000885 is a deficient number, since it is larger than the sum of its proper divisors (49400183).

247000885 is an equidigital number, since it uses as much as digits as its factorization.

247000885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49400182.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 247000885 is about 15716.2618010773. The cubic root of 247000885 is about 627.4312851006.

The spelling of 247000885 in words is "two hundred forty-seven million, eight hundred eighty-five", and thus it is an aban number.