28963151 has 4 divisors (see below), whose sum is σ = 33100752. Its totient is φ = 24825552.

The previous prime is 28963147. The next prime is 28963169. The reversal of 28963151 is 15136982.

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 28963151 - 2² = 28963147 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 (28963111) 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, 2068790 + ... + 2068803.

It is an arithmetic number, because the mean of its divisors is an integer number (8275188).

Almost surely, 2^28963151 is an apocalyptic number.

28963151 is a deficient number, since it is larger than the sum of its proper divisors (4137601).

28963151 is an equidigital number, since it uses as much as digits as its factorization.

28963151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4137600.

The product of its digits is 12960, while the sum is 35.

The square root of 28963151 is about 5381.7423758482. The cubic root of 28963151 is about 307.1014989046.

The spelling of 28963151 in words is "twenty-eight million, nine hundred sixty-three thousand, one hundred fifty-one".