92001987 has 84 divisors (see below), whose sum is σ = 174442800. Its totient is φ = 47472480.

The previous prime is 92001979. The next prime is 92002003. The reversal of 92001987 is 78910029.

It is a happy number.

It is not a de Polignac number, because 92001987 - 2³ = 92001979 is a prime.

It is a super-2 number, since 2×92001987² = 16928731223896338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (92001937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 617389 + ... + 617537.

It is an arithmetic number, because the mean of its divisors is an integer number (2076700).

Almost surely, 2^92001987 is an apocalyptic number.

92001987 is a deficient number, since it is larger than the sum of its proper divisors (82440813).

92001987 is a wasteful number, since it uses less digits than its factorization.

92001987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 92001987 is about 9591.7666256014. The cubic root of 92001987 is about 451.4389935342.

The spelling of 92001987 in words is "ninety-two million, one thousand, nine hundred eighty-seven".