28374769 has 8 divisors (see below), whose sum is σ = 29071872. Its totient is φ = 27683760.

The previous prime is 28374763. The next prime is 28374791. The reversal of 28374769 is 96747382.

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 28374769 - 2³ = 28374761 is a prime.

It is a super-2 number, since 2×28374769² = 1610255031606722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28374761) 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, 8722 + ... + 11524.

It is an arithmetic number, because the mean of its divisors is an integer number (3633984).

Almost surely, 2^28374769 is an apocalyptic number.

It is an amenable number.

28374769 is a deficient number, since it is larger than the sum of its proper divisors (697103).

28374769 is a wasteful number, since it uses less digits than its factorization.

28374769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3047.

The product of its digits is 508032, while the sum is 46.

The square root of 28374769 is about 5326.7972553871. The cubic root of 28374769 is about 305.0076823291.

The spelling of 28374769 in words is "twenty-eight million, three hundred seventy-four thousand, seven hundred sixty-nine".