87240383 has 2 divisors, whose sum is σ = 87240384. Its totient is φ = 87240382.

The previous prime is 87240341. The next prime is 87240443. The reversal of 87240383 is 38304278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87240383 - 2²² = 83046079 is a prime.

It is a super-2 number, since 2×87240383² = 15221768851973378, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87240983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43620191 + 43620192.

It is an arithmetic number, because the mean of its divisors is an integer number (43620192).

Almost surely, 2^87240383 is an apocalyptic number.

87240383 is a deficient number, since it is larger than the sum of its proper divisors (1).

87240383 is an equidigital number, since it uses as much as digits as its factorization.

87240383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 87240383 is about 9340.2560457409. The cubic root of 87240383 is about 443.5124897608.

The spelling of 87240383 in words is "eighty-seven million, two hundred forty thousand, three hundred eighty-three".