147996823 has 8 divisors (see below), whose sum is σ = 159694416. Its totient is φ = 136344000.

The previous prime is 147996817. The next prime is 147996887. The reversal of 147996823 is 328699741.

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-147996823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147996223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4153 + ... + 17698.

It is an arithmetic number, because the mean of its divisors is an integer number (19961802).

Almost surely, 2^147996823 is an apocalyptic number.

147996823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

147996823 is a deficient number, since it is larger than the sum of its proper divisors (11697593).

147996823 is a wasteful number, since it uses less digits than its factorization.

147996823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22385.

The product of its digits is 653184, while the sum is 49.

The square root of 147996823 is about 12165.3944860000. The cubic root of 147996823 is about 528.9534623388.

The spelling of 147996823 in words is "one hundred forty-seven million, nine hundred ninety-six thousand, eight hundred twenty-three".