47812613 has 2 divisors, whose sum is σ = 47812614. Its totient is φ = 47812612.

The previous prime is 47812559. The next prime is 47812631. The reversal of 47812613 is 31621874.

Together with next prime (47812631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42276004 + 5536609 = 6502^2 + 2353^2 .

It is a cyclic number.

It is not a de Polignac number, because 47812613 - 2⁸ = 47812357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47812613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47812643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23906306 + 23906307.

It is an arithmetic number, because the mean of its divisors is an integer number (23906307).

Almost surely, 2^47812613 is an apocalyptic number.

It is an amenable number.

47812613 is a deficient number, since it is larger than the sum of its proper divisors (1).

47812613 is an equidigital number, since it uses as much as digits as its factorization.

47812613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 32.

The square root of 47812613 is about 6914.6665140121. Note that the first 3 decimals coincide. The cubic root of 47812613 is about 362.9505785130.

The spelling of 47812613 in words is "forty-seven million, eight hundred twelve thousand, six hundred thirteen".