469699021 has 4 divisors (see below), whose sum is σ = 512398944. Its totient is φ = 426999100.

The previous prime is 469698997. The next prime is 469699063. The reversal of 469699021 is 120996964.

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 not a de Polignac number, because 469699021 - 2⁵ = 469698989 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 (469699121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21349945 + ... + 21349966.

It is an arithmetic number, because the mean of its divisors is an integer number (128099736).

Almost surely, 2^469699021 is an apocalyptic number.

It is an amenable number.

469699021 is a deficient number, since it is larger than the sum of its proper divisors (42699923).

469699021 is a wasteful number, since it uses less digits than its factorization.

469699021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42699922.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 469699021 is about 21672.5407140003. The cubic root of 469699021 is about 777.3320093490.

The spelling of 469699021 in words is "four hundred sixty-nine million, six hundred ninety-nine thousand, twenty-one".