987122073 has 32 divisors (see below), whose sum is σ = 1581668352. Its totient is φ = 535392000.

The previous prime is 987122063. The next prime is 987122089. The reversal of 987122073 is 370221789.

It is not a de Polignac number, because 987122073 - 2¹⁰ = 987121049 is a prime.

It is a super-3 number, since 3×987122073³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (987122023) 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, 55473 + ... + 71073.

It is an arithmetic number, because the mean of its divisors is an integer number (49427136).

Almost surely, 2^987122073 is an apocalyptic number.

It is an amenable number.

987122073 is a deficient number, since it is larger than the sum of its proper divisors (594546279).

987122073 is a wasteful number, since it uses less digits than its factorization.

987122073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15765.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 987122073 is about 31418.4988979423. The cubic root of 987122073 is about 995.6887979132.

The spelling of 987122073 in words is "nine hundred eighty-seven million, one hundred twenty-two thousand, seventy-three".