87743233 has 2 divisors, whose sum is σ = 87743234. Its totient is φ = 87743232.

The previous prime is 87743221. The next prime is 87743251. The reversal of 87743233 is 33234778.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87291649 + 451584 = 9343^2 + 672^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87743233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87743192 and 87743201.

It is not a weakly prime, because it can be changed into another prime (87743203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43871616 + 43871617.

It is an arithmetic number, because the mean of its divisors is an integer number (43871617).

Almost surely, 2^87743233 is an apocalyptic number.

It is an amenable number.

87743233 is a deficient number, since it is larger than the sum of its proper divisors (1).

87743233 is an equidigital number, since it uses as much as digits as its factorization.

87743233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 37.

The square root of 87743233 is about 9367.1357948948. The cubic root of 87743233 is about 444.3629870553.

The spelling of 87743233 in words is "eighty-seven million, seven hundred forty-three thousand, two hundred thirty-three".