987623923 has 8 divisors (see below), whose sum is σ = 1160285616. Its totient is φ = 828775200.

The previous prime is 987623899. The next prime is 987623927. The reversal of 987623923 is 329326789.

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

It is not a de Polignac number, because 987623923 - 2⁹ = 987623411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (987623927) 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, 3453088 + ... + 3453373.

It is an arithmetic number, because the mean of its divisors is an integer number (145035702).

Almost surely, 2^987623923 is an apocalyptic number.

987623923 is a deficient number, since it is larger than the sum of its proper divisors (172661693).

987623923 is a wasteful number, since it uses less digits than its factorization.

987623923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6906485.

The product of its digits is 979776, while the sum is 49.

The square root of 987623923 is about 31426.4844199920. The cubic root of 987623923 is about 995.8575044259.

The spelling of 987623923 in words is "nine hundred eighty-seven million, six hundred twenty-three thousand, nine hundred twenty-three".