987412969 has 8 divisors (see below), whose sum is σ = 1029238208. Its totient is φ = 946384560.

The previous prime is 987412883. The next prime is 987412973. The reversal of 987412969 is 969214789.

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 987412969 - 2²⁵ = 953858537 is a prime.

It is a super-2 number, since 2×987412969² = 1949968742698789922, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987412169) 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 7 ways as a sum of consecutive naturals, for example, 196677 + ... + 201634.

It is an arithmetic number, because the mean of its divisors is an integer number (128654776).

Almost surely, 2^987412969 is an apocalyptic number.

It is an amenable number.

987412969 is a deficient number, since it is larger than the sum of its proper divisors (41825239).

987412969 is a wasteful number, since it uses less digits than its factorization.

987412969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398415.

The product of its digits is 1959552, while the sum is 55.

The square root of 987412969 is about 31423.1279315093. The cubic root of 987412969 is about 995.7865951528.

The spelling of 987412969 in words is "nine hundred eighty-seven million, four hundred twelve thousand, nine hundred sixty-nine".