890229469 has 4 divisors (see below), whose sum is σ = 903516544. Its totient is φ = 876942396.

The previous prime is 890229451. The next prime is 890229493. The reversal of 890229469 is 964922098.

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 890229469 - 2⁷ = 890229341 is a prime.

It is a super-2 number, since 2×890229469² = 1585017014952043922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890229419) 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, 6643437 + ... + 6643570.

It is an arithmetic number, because the mean of its divisors is an integer number (225879136).

Almost surely, 2^890229469 is an apocalyptic number.

It is an amenable number.

890229469 is a deficient number, since it is larger than the sum of its proper divisors (13287075).

890229469 is a wasteful number, since it uses less digits than its factorization.

890229469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13287074.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 890229469 is about 29836.7134416644. The cubic root of 890229469 is about 961.9828335190.

The spelling of 890229469 in words is "eight hundred ninety million, two hundred twenty-nine thousand, four hundred sixty-nine".