523348991 has 8 divisors (see below), whose sum is σ = 575979984. Its totient is φ = 471560320.

The previous prime is 523348957. The next prime is 523348999. The reversal of 523348991 is 199843325.

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-523348991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523348999) 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, 209276 + ... + 211761.

It is an arithmetic number, because the mean of its divisors is an integer number (71997498).

Almost surely, 2^523348991 is an apocalyptic number.

523348991 is a deficient number, since it is larger than the sum of its proper divisors (52630993).

523348991 is a wasteful number, since it uses less digits than its factorization.

523348991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421161.

The product of its digits is 233280, while the sum is 44.

The square root of 523348991 is about 22876.8221350781. The cubic root of 523348991 is about 805.8677889034.

The spelling of 523348991 in words is "five hundred twenty-three million, three hundred forty-eight thousand, nine hundred ninety-one".