28296469 has 4 divisors (see below), whose sum is σ = 28571296. Its totient is φ = 28021644.

The previous prime is 28296461. The next prime is 28296481. The reversal of 28296469 is 96469282.

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 28296469 - 2³ = 28296461 is a prime.

It is a super-2 number, since 2×28296469² = 1601380315735922, 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 (28296461) 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, 137259 + ... + 137464.

It is an arithmetic number, because the mean of its divisors is an integer number (7142824).

Almost surely, 2^28296469 is an apocalyptic number.

It is an amenable number.

28296469 is a deficient number, since it is larger than the sum of its proper divisors (274827).

28296469 is a wasteful number, since it uses less digits than its factorization.

28296469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274826.

The product of its digits is 373248, while the sum is 46.

The square root of 28296469 is about 5319.4425459817. The cubic root of 28296469 is about 304.7268682630.

The spelling of 28296469 in words is "twenty-eight million, two hundred ninety-six thousand, four hundred sixty-nine".