28828151 has 4 divisors (see below), whose sum is σ = 31448904. Its totient is φ = 26207400.

The previous prime is 28828147. The next prime is 28828153. The reversal of 28828151 is 15182882.

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

It is a cyclic number.

It is not a de Polignac number, because 28828151 - 2² = 28828147 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 (28828153) 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, 1310360 + ... + 1310381.

It is an arithmetic number, because the mean of its divisors is an integer number (7862226).

Almost surely, 2^28828151 is an apocalyptic number.

28828151 is a deficient number, since it is larger than the sum of its proper divisors (2620753).

28828151 is a wasteful number, since it uses less digits than its factorization.

28828151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620752.

The product of its digits is 10240, while the sum is 35.

The square root of 28828151 is about 5369.1853199531. The cubic root of 28828151 is about 306.6236125495.

The spelling of 28828151 in words is "twenty-eight million, eight hundred twenty-eight thousand, one hundred fifty-one".