515428423 has 8 divisors (see below), whose sum is σ = 552324528. Its totient is φ = 479263104.

The previous prime is 515428411. The next prime is 515428453. The reversal of 515428423 is 324824515.

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 515428423 - 2⁹ = 515427911 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 (515428453) 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, 181236 + ... + 184057.

It is an arithmetic number, because the mean of its divisors is an integer number (69040566).

Almost surely, 2^515428423 is an apocalyptic number.

515428423 is a deficient number, since it is larger than the sum of its proper divisors (36896105).

515428423 is a wasteful number, since it uses less digits than its factorization.

515428423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365393.

The product of its digits is 38400, while the sum is 34.

The square root of 515428423 is about 22703.0487600234. The cubic root of 515428423 is about 801.7816661159.

The spelling of 515428423 in words is "five hundred fifteen million, four hundred twenty-eight thousand, four hundred twenty-three".