87982011 has 32 divisors (see below), whose sum is σ = 140958720. Its totient is φ = 53916192.

The previous prime is 87982003. The next prime is 87982019. The reversal of 87982011 is 11028978.

It is an interprime number because it is at equal distance from previous prime (87982003) and next prime (87982019).

It is not a de Polignac number, because 87982011 - 2³ = 87982003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87982019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128476 + ... + 129158.

It is an arithmetic number, because the mean of its divisors is an integer number (4404960).

Almost surely, 2^87982011 is an apocalyptic number.

87982011 is a deficient number, since it is larger than the sum of its proper divisors (52976709).

87982011 is a wasteful number, since it uses less digits than its factorization.

87982011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1066 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 87982011 is about 9379.8726537198. The cubic root of 87982011 is about 444.7657075803.

The spelling of 87982011 in words is "eighty-seven million, nine hundred eighty-two thousand, eleven".