28946572 has 6 divisors (see below), whose sum is σ = 50656508. Its totient is φ = 14473284.

The previous prime is 28946551. The next prime is 28946573. The reversal of 28946572 is 27564982.

It is not an unprimeable number, because it can be changed into a prime (28946573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3618318 + ... + 3618325.

Almost surely, 2^28946572 is an apocalyptic number.

It is an amenable number.

28946572 is a deficient number, since it is larger than the sum of its proper divisors (21709936).

28946572 is a wasteful number, since it uses less digits than its factorization.

28946572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7236647 (or 7236645 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 28946572 is about 5380.2018549493. The cubic root of 28946572 is about 307.0428910143.

The spelling of 28946572 in words is "twenty-eight million, nine hundred forty-six thousand, five hundred seventy-two".