87440383 has 2 divisors, whose sum is σ = 87440384. Its totient is φ = 87440382.

The previous prime is 87440357. The next prime is 87440393. The reversal of 87440383 is 38304478.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87440383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87440393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43720191 + 43720192.

It is an arithmetic number, because the mean of its divisors is an integer number (43720192).

Almost surely, 2^87440383 is an apocalyptic number.

87440383 is a deficient number, since it is larger than the sum of its proper divisors (1).

87440383 is an equidigital number, since it uses as much as digits as its factorization.

87440383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 87440383 is about 9350.9562612601. The cubic root of 87440383 is about 443.8511509676.

The spelling of 87440383 in words is "eighty-seven million, four hundred forty thousand, three hundred eighty-three".