87353843 has 2 divisors, whose sum is σ = 87353844. Its totient is φ = 87353842.

The previous prime is 87353801. The next prime is 87353857. The reversal of 87353843 is 34835378.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87353843 - 2¹⁶ = 87288307 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87353843.

It is not a weakly prime, because it can be changed into another prime (87353873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43676921 + 43676922.

It is an arithmetic number, because the mean of its divisors is an integer number (43676922).

Almost surely, 2^87353843 is an apocalyptic number.

87353843 is a deficient number, since it is larger than the sum of its proper divisors (1).

87353843 is an equidigital number, since it uses as much as digits as its factorization.

87353843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 41.

The square root of 87353843 is about 9346.3277815407. The cubic root of 87353843 is about 443.7046757120.

The spelling of 87353843 in words is "eighty-seven million, three hundred fifty-three thousand, eight hundred forty-three".