987226679 has 4 divisors (see below), whose sum is σ = 993138384. Its totient is φ = 981314976.

The previous prime is 987226673. The next prime is 987226687. The reversal of 987226679 is 976622789.

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: 976622789 = 2027 ⋅481807.

It is a cyclic number.

It is not a de Polignac number, because 987226679 - 2⁴ = 987226663 is a prime.

It is a super-3 number, since 3×987226679³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987226673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2955602 + ... + 2955935.

It is an arithmetic number, because the mean of its divisors is an integer number (248284596).

Almost surely, 2^987226679 is an apocalyptic number.

987226679 is a deficient number, since it is larger than the sum of its proper divisors (5911705).

987226679 is a wasteful number, since it uses less digits than its factorization.

987226679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911704.

The product of its digits is 4572288, while the sum is 56.

The square root of 987226679 is about 31420.1635737308. The cubic root of 987226679 is about 995.7239679448.

The spelling of 987226679 in words is "nine hundred eighty-seven million, two hundred twenty-six thousand, six hundred seventy-nine".