28974461 has 4 divisors (see below), whose sum is σ = 29382624. Its totient is φ = 28566300.

The previous prime is 28974431. The next prime is 28974467. The reversal of 28974461 is 16447982.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16447982 = 2 ⋅8223991.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28974461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28974467) 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, 203975 + ... + 204116.

It is an arithmetic number, because the mean of its divisors is an integer number (7345656).

Almost surely, 2^28974461 is an apocalyptic number.

It is an amenable number.

28974461 is a deficient number, since it is larger than the sum of its proper divisors (408163).

28974461 is an equidigital number, since it uses as much as digits as its factorization.

28974461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408162.

The product of its digits is 96768, while the sum is 41.

The square root of 28974461 is about 5382.7930482232. The cubic root of 28974461 is about 307.1414676905.

The spelling of 28974461 in words is "twenty-eight million, nine hundred seventy-four thousand, four hundred sixty-one".