87374843 has 2 divisors, whose sum is σ = 87374844. Its totient is φ = 87374842.

The previous prime is 87374831. The next prime is 87374873. The reversal of 87374843 is 34847378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87374843 - 2¹⁴ = 87358459 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 87374794 and 87374803.

It is not a weakly prime, because it can be changed into another prime (87374803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43687421 + 43687422.

It is an arithmetic number, because the mean of its divisors is an integer number (43687422).

Almost surely, 2^87374843 is an apocalyptic number.

87374843 is a deficient number, since it is larger than the sum of its proper divisors (1).

87374843 is an equidigital number, since it uses as much as digits as its factorization.

87374843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 44.

The square root of 87374843 is about 9347.4511499125. The cubic root of 87374843 is about 443.7402286283.

Adding to 87374843 its reverse (34847378), we get a palindrome (122222221).

The spelling of 87374843 in words is "eighty-seven million, three hundred seventy-four thousand, eight hundred forty-three".