523934387 has 8 divisors (see below), whose sum is σ = 544395600. Its totient is φ = 503632864.

The previous prime is 523934287. The next prime is 523934401. The reversal of 523934387 is 783439325.

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 523934387 - 2²² = 519740083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523934287) 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, 33212 + ... + 46377.

It is an arithmetic number, because the mean of its divisors is an integer number (68049450).

Almost surely, 2^523934387 is an apocalyptic number.

523934387 is a deficient number, since it is larger than the sum of its proper divisors (20461213).

523934387 is a wasteful number, since it uses less digits than its factorization.

523934387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79845.

The product of its digits is 544320, while the sum is 44.

The square root of 523934387 is about 22889.6130810462. The cubic root of 523934387 is about 806.1681467931.

The spelling of 523934387 in words is "five hundred twenty-three million, nine hundred thirty-four thousand, three hundred eighty-seven".