87839371 has 2 divisors, whose sum is σ = 87839372. Its totient is φ = 87839370.

The previous prime is 87839363. The next prime is 87839429. The reversal of 87839371 is 17393878.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87839371 - 2³ = 87839363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87839321) 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, 43919685 + 43919686.

It is an arithmetic number, because the mean of its divisors is an integer number (43919686).

Almost surely, 2^87839371 is an apocalyptic number.

87839371 is a deficient number, since it is larger than the sum of its proper divisors (1).

87839371 is an equidigital number, since it uses as much as digits as its factorization.

87839371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 46.

The square root of 87839371 is about 9372.2660546956. The cubic root of 87839371 is about 444.5252201773.

The spelling of 87839371 in words is "eighty-seven million, eight hundred thirty-nine thousand, three hundred seventy-one".