28953772 has 24 divisors (see below), whose sum is σ = 52027920. Its totient is φ = 14093760.

The previous prime is 28953763. The next prime is 28953791. The reversal of 28953772 is 27735982.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25554 + ... + 26662.

It is an arithmetic number, because the mean of its divisors is an integer number (2167830).

Almost surely, 2^28953772 is an apocalyptic number.

It is an amenable number.

28953772 is a deficient number, since it is larger than the sum of its proper divisors (23074148).

28953772 is a wasteful number, since it uses less digits than its factorization.

28953772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1279 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 28953772 is about 5380.8709332226. The cubic root of 28953772 is about 307.0683462512.

The spelling of 28953772 in words is "twenty-eight million, nine hundred fifty-three thousand, seven hundred seventy-two".