513895693 has 4 divisors (see below), whose sum is σ = 536239008. Its totient is φ = 491552380.

The previous prime is 513895687. The next prime is 513895741. The reversal of 513895693 is 396598315.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 513895693 - 2⁵ = 513895661 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 (513895493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11171623 + ... + 11171668.

It is an arithmetic number, because the mean of its divisors is an integer number (134059752).

Almost surely, 2^513895693 is an apocalyptic number.

It is an amenable number.

513895693 is a deficient number, since it is larger than the sum of its proper divisors (22343315).

513895693 is a wasteful number, since it uses less digits than its factorization.

513895693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22343314.

The product of its digits is 874800, while the sum is 49.

The square root of 513895693 is about 22669.2675885217. The cubic root of 513895693 is about 800.9861240539.

The spelling of 513895693 in words is "five hundred thirteen million, eight hundred ninety-five thousand, six hundred ninety-three".