28695263 has 8 divisors (see below), whose sum is σ = 30294000. Its totient is φ = 27105408.

The previous prime is 28695259. The next prime is 28695281. The reversal of 28695263 is 36259682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28695263 - 2² = 28695259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28695263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28695223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5063 + ... + 9111.

It is an arithmetic number, because the mean of its divisors is an integer number (3786750).

Almost surely, 2^28695263 is an apocalyptic number.

28695263 is a deficient number, since it is larger than the sum of its proper divisors (1598737).

28695263 is a wasteful number, since it uses less digits than its factorization.

28695263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4441.

The product of its digits is 155520, while the sum is 41.

The square root of 28695263 is about 5356.7959640068. The cubic root of 28695263 is about 306.1517431282.

The spelling of 28695263 in words is "twenty-eight million, six hundred ninety-five thousand, two hundred sixty-three".