87836893 has 2 divisors, whose sum is σ = 87836894. Its totient is φ = 87836892.

The previous prime is 87836891. The next prime is 87836963. The reversal of 87836893 is 39863878.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78818884 + 9018009 = 8878^2 + 3003^2 .

It is a cyclic number.

It is not a de Polignac number, because 87836893 - 2¹ = 87836891 is a prime.

Together with 87836891, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 87836893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87836891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43918446 + 43918447.

It is an arithmetic number, because the mean of its divisors is an integer number (43918447).

Almost surely, 2^87836893 is an apocalyptic number.

It is an amenable number.

87836893 is a deficient number, since it is larger than the sum of its proper divisors (1).

87836893 is an equidigital number, since it uses as much as digits as its factorization.

87836893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 87836893 is about 9372.1338552114. The cubic root of 87836893 is about 444.5210400325.

The spelling of 87836893 in words is "eighty-seven million, eight hundred thirty-six thousand, eight hundred ninety-three".