1987073 has 8 divisors (see below), whose sum is σ = 2218656. Its totient is φ = 1764000.

The previous prime is 1987067. The next prime is 1987081. The reversal of 1987073 is 3707891.

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

It is a cyclic number.

It is not a de Polignac number, because 1987073 - 2⁴ = 1987057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1987003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628 + ... + 2573.

It is an arithmetic number, because the mean of its divisors is an integer number (277332).

2^1987073 is an apocalyptic number.

It is an amenable number.

1987073 is a deficient number, since it is larger than the sum of its proper divisors (231583).

1987073 is a wasteful number, since it uses less digits than its factorization.

1987073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4255.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 1987073 is about 1409.6357685587. The cubic root of 1987073 is about 125.7200680511.

The spelling of 1987073 in words is "one million, nine hundred eighty-seven thousand, seventy-three".