987126603 has 4 divisors (see below), whose sum is σ = 1316168808. Its totient is φ = 658084400.

The previous prime is 987126599. The next prime is 987126617. The reversal of 987126603 is 306621789.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306621789 = 3 ⋅102207263.

It is a cyclic number.

It is not a de Polignac number, because 987126603 - 2² = 987126599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (987126653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164521098 + ... + 164521103.

It is an arithmetic number, because the mean of its divisors is an integer number (329042202).

Almost surely, 2^987126603 is an apocalyptic number.

987126603 is a deficient number, since it is larger than the sum of its proper divisors (329042205).

987126603 is a wasteful number, since it uses less digits than its factorization.

987126603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329042204.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 987126603 is about 31418.5709891459. The cubic root of 987126603 is about 995.6903210154.

The spelling of 987126603 in words is "nine hundred eighty-seven million, one hundred twenty-six thousand, six hundred three".