987397619 has 8 divisors (see below), whose sum is σ = 1064339472. Its totient is φ = 910596960.

The previous prime is 987397601. The next prime is 987397657. The reversal of 987397619 is 916793789.

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

It is a de Polignac number, because none of the positive numbers 2^k-987397619 is a prime.

It is a super-2 number, since 2×987397619² = 1949908116013738322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987397679) 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, 20537 + ... + 48954.

It is an arithmetic number, because the mean of its divisors is an integer number (133042434).

Almost surely, 2^987397619 is an apocalyptic number.

987397619 is a deficient number, since it is larger than the sum of its proper divisors (76941853).

987397619 is a wasteful number, since it uses less digits than its factorization.

987397619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70597.

The product of its digits is 5143824, while the sum is 59.

The square root of 987397619 is about 31422.8836837105. The cubic root of 987397619 is about 995.7814350682.

The spelling of 987397619 in words is "nine hundred eighty-seven million, three hundred ninety-seven thousand, six hundred nineteen".