28701769 has 8 divisors (see below), whose sum is σ = 30647232. Its totient is φ = 26814480.

The previous prime is 28701733. The next prime is 28701773. The reversal of 28701769 is 96710782.

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 28701769 - 2¹¹ = 28699721 is a prime.

It is a super-2 number, since 2×28701769² = 1647583087458722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28701719) 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, 13522 + ... + 15499.

It is an arithmetic number, because the mean of its divisors is an integer number (3830904).

Almost surely, 2^28701769 is an apocalyptic number.

It is an amenable number.

28701769 is a deficient number, since it is larger than the sum of its proper divisors (1945463).

28701769 is a wasteful number, since it uses less digits than its factorization.

28701769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29087.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 28701769 is about 5357.4031955790. The cubic root of 28701769 is about 306.1748790343.

The spelling of 28701769 in words is "twenty-eight million, seven hundred one thousand, seven hundred sixty-nine".