87868357 has 2 divisors, whose sum is σ = 87868358. Its totient is φ = 87868356.

The previous prime is 87868351. The next prime is 87868367. The reversal of 87868357 is 75386878.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60000516 + 27867841 = 7746^2 + 5279^2 .

It is a cyclic number.

It is not a de Polignac number, because 87868357 - 2¹¹ = 87866309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87868351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43934178 + 43934179.

It is an arithmetic number, because the mean of its divisors is an integer number (43934179).

Almost surely, 2^87868357 is an apocalyptic number.

It is an amenable number.

87868357 is a deficient number, since it is larger than the sum of its proper divisors (1).

87868357 is an equidigital number, since it uses as much as digits as its factorization.

87868357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 52.

The square root of 87868357 is about 9373.8122980994. The cubic root of 87868357 is about 444.5741109000.

The spelling of 87868357 in words is "eighty-seven million, eight hundred sixty-eight thousand, three hundred fifty-seven".