87712847 has 2 divisors, whose sum is σ = 87712848. Its totient is φ = 87712846.

The previous prime is 87712837. The next prime is 87712879. The reversal of 87712847 is 74821778.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87712847 - 2¹⁴ = 87696463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87712798 and 87712807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87712837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43856423 + 43856424.

It is an arithmetic number, because the mean of its divisors is an integer number (43856424).

Almost surely, 2^87712847 is an apocalyptic number.

87712847 is a deficient number, since it is larger than the sum of its proper divisors (1).

87712847 is an equidigital number, since it uses as much as digits as its factorization.

87712847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 175616, while the sum is 44.

The square root of 87712847 is about 9365.5137072133. The cubic root of 87712847 is about 444.3116859569.

The spelling of 87712847 in words is "eighty-seven million, seven hundred twelve thousand, eight hundred forty-seven".