28925069 has 4 divisors (see below), whose sum is σ = 29540544. Its totient is φ = 28309596.

The previous prime is 28925063. The next prime is 28925101. The reversal of 28925069 is 96052982.

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 28925069 - 2¹⁶ = 28859533 is a prime.

It is a super-3 number, since 3×28925069³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28925063) 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, 307667 + ... + 307760.

It is an arithmetic number, because the mean of its divisors is an integer number (7385136).

Almost surely, 2^28925069 is an apocalyptic number.

It is an amenable number.

28925069 is a deficient number, since it is larger than the sum of its proper divisors (615475).

28925069 is an equidigital number, since it uses as much as digits as its factorization.

28925069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615474.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 28925069 is about 5378.2031385956. The cubic root of 28925069 is about 306.9668431053.

The spelling of 28925069 in words is "twenty-eight million, nine hundred twenty-five thousand, sixty-nine".