83959487 has 2 divisors, whose sum is σ = 83959488. Its totient is φ = 83959486.

The previous prime is 83959459. The next prime is 83959511. The reversal of 83959487 is 78495938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83959487 - 2¹⁰ = 83958463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83959427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41979743 + 41979744.

It is an arithmetic number, because the mean of its divisors is an integer number (41979744).

Almost surely, 2^83959487 is an apocalyptic number.

83959487 is a deficient number, since it is larger than the sum of its proper divisors (1).

83959487 is an equidigital number, since it uses as much as digits as its factorization.

83959487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 83959487 is about 9162.9409580112. The cubic root of 83959487 is about 437.8814949448.

The spelling of 83959487 in words is "eighty-three million, nine hundred fifty-nine thousand, four hundred eighty-seven".