87385433 has 2 divisors, whose sum is σ = 87385434. Its totient is φ = 87385432.

The previous prime is 87385429. The next prime is 87385447. The reversal of 87385433 is 33458378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87086224 + 299209 = 9332^2 + 547^2 .

It is a cyclic number.

It is not a de Polignac number, because 87385433 - 2² = 87385429 is a prime.

It is not a weakly prime, because it can be changed into another prime (87385633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43692716 + 43692717.

It is an arithmetic number, because the mean of its divisors is an integer number (43692717).

Almost surely, 2^87385433 is an apocalyptic number.

It is an amenable number.

87385433 is a deficient number, since it is larger than the sum of its proper divisors (1).

87385433 is an equidigital number, since it uses as much as digits as its factorization.

87385433 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 87385433 is about 9348.0175973305. The cubic root of 87385433 is about 443.7581552955.

The spelling of 87385433 in words is "eighty-seven million, three hundred eighty-five thousand, four hundred thirty-three".