87083771 has 6 divisors (see below), whose sum is σ = 87485580. Its totient is φ = 86683748.

The previous prime is 87083767. The next prime is 87083779. The reversal of 87083771 is 17738078.

It is not a de Polignac number, because 87083771 - 2² = 87083767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87083779) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68540 + ... + 69798.

It is an arithmetic number, because the mean of its divisors is an integer number (14580930).

Almost surely, 2^87083771 is an apocalyptic number.

87083771 is a deficient number, since it is larger than the sum of its proper divisors (401809).

87083771 is an equidigital number, since it uses as much as digits as its factorization.

87083771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 41.

The square root of 87083771 is about 9331.8685695846. The cubic root of 87083771 is about 443.2469361982.

The spelling of 87083771 in words is "eighty-seven million, eighty-three thousand, seven hundred seventy-one".