28975461 has 4 divisors (see below), whose sum is σ = 38633952. Its totient is φ = 19316972.

The previous prime is 28975459. The next prime is 28975487. The reversal of 28975461 is 16457982.

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.

It is a cyclic number.

It is not a de Polignac number, because 28975461 - 2¹ = 28975459 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28975411) 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, 4829241 + ... + 4829246.

It is an arithmetic number, because the mean of its divisors is an integer number (9658488).

Almost surely, 2^28975461 is an apocalyptic number.

It is an amenable number.

28975461 is a deficient number, since it is larger than the sum of its proper divisors (9658491).

28975461 is an equidigital number, since it uses as much as digits as its factorization.

28975461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9658490.

The product of its digits is 120960, while the sum is 42.

The square root of 28975461 is about 5382.8859360012. The cubic root of 28975461 is about 307.1450011234.

The spelling of 28975461 in words is "twenty-eight million, nine hundred seventy-five thousand, four hundred sixty-one".