28754491 has 8 divisors (see below), whose sum is σ = 29053440. Its totient is φ = 28457472.

The previous prime is 28754471. The next prime is 28754549. The reversal of 28754491 is 19445782.

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 28754491 - 2¹¹ = 28752443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28754471) 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, 73725 + ... + 74113.

It is an arithmetic number, because the mean of its divisors is an integer number (3631680).

Almost surely, 2^28754491 is an apocalyptic number.

28754491 is a deficient number, since it is larger than the sum of its proper divisors (298949).

28754491 is a wasteful number, since it uses less digits than its factorization.

28754491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965.

The product of its digits is 80640, while the sum is 40.

The square root of 28754491 is about 5362.3214189379. The cubic root of 28754491 is about 306.3622342487.

The spelling of 28754491 in words is "twenty-eight million, seven hundred fifty-four thousand, four hundred ninety-one".