28955474 has 4 divisors (see below), whose sum is σ = 43433214. Its totient is φ = 14477736.

The previous prime is 28955467. The next prime is 28955477. The reversal of 28955474 is 47455982.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16459249 + 12496225 = 4057^2 + 3535^2 .

It is not an unprimeable number, because it can be changed into a prime (28955477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7238867 + ... + 7238870.

Almost surely, 2^28955474 is an apocalyptic number.

28955474 is a deficient number, since it is larger than the sum of its proper divisors (14477740).

28955474 is a wasteful number, since it uses less digits than its factorization.

28955474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14477739.

The product of its digits is 403200, while the sum is 44.

The square root of 28955474 is about 5381.0290837348. The cubic root of 28955474 is about 307.0743629697.

The spelling of 28955474 in words is "twenty-eight million, nine hundred fifty-five thousand, four hundred seventy-four".