1987022 has 8 divisors (see below), whose sum is σ = 3083400. Its totient is φ = 959224.

The previous prime is 1987003. The next prime is 1987031. The reversal of 1987022 is 2207891.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a pancake number, because a pancake can be divided into 1987022 parts by 1993 straight cuts.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17072 + ... + 17187.

It is an arithmetic number, because the mean of its divisors is an integer number (385425).

2^1987022 is an apocalyptic number.

1987022 is a deficient number, since it is larger than the sum of its proper divisors (1096378).

1987022 is a wasteful number, since it uses less digits than its factorization.

1987022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34290.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1987022 is about 1409.6176786633. The cubic root of 1987022 is about 125.7189924694.

The spelling of 1987022 in words is "one million, nine hundred eighty-seven thousand, twenty-two".