514878923 has 4 divisors (see below), whose sum is σ = 554485008. Its totient is φ = 475272840.

The previous prime is 514878919. The next prime is 514878977. The reversal of 514878923 is 329878415.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 514878923 - 2² = 514878919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (514878823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19803023 + ... + 19803048.

It is an arithmetic number, because the mean of its divisors is an integer number (138621252).

Almost surely, 2^514878923 is an apocalyptic number.

514878923 is a deficient number, since it is larger than the sum of its proper divisors (39606085).

514878923 is a wasteful number, since it uses less digits than its factorization.

514878923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39606084.

The product of its digits is 483840, while the sum is 47.

The square root of 514878923 is about 22690.9436339699. The cubic root of 514878923 is about 801.4966374121.

The spelling of 514878923 in words is "five hundred fourteen million, eight hundred seventy-eight thousand, nine hundred twenty-three".