469687493 has 4 divisors (see below), whose sum is σ = 512386368. Its totient is φ = 426988620.

The previous prime is 469687481. The next prime is 469687511. The reversal of 469687493 is 394786964.

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 a de Polignac number, because none of the positive numbers 2^k-469687493 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 (469687433) 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, 21349421 + ... + 21349442.

It is an arithmetic number, because the mean of its divisors is an integer number (128096592).

Almost surely, 2^469687493 is an apocalyptic number.

It is an amenable number.

469687493 is a deficient number, since it is larger than the sum of its proper divisors (42698875).

469687493 is a wasteful number, since it uses less digits than its factorization.

469687493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42698874.

The product of its digits is 7838208, while the sum is 56.

The square root of 469687493 is about 21672.2747537032. The cubic root of 469687493 is about 777.3256498462.

The spelling of 469687493 in words is "four hundred sixty-nine million, six hundred eighty-seven thousand, four hundred ninety-three".