28248951 has 8 divisors (see below), whose sum is σ = 39880944. Its totient is φ = 17724800.

The previous prime is 28248949. The next prime is 28248977. The reversal of 28248951 is 15984282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28248951 - 2¹ = 28248949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28248911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276900 + ... + 277001.

It is an arithmetic number, because the mean of its divisors is an integer number (4985118).

Almost surely, 2^28248951 is an apocalyptic number.

28248951 is a deficient number, since it is larger than the sum of its proper divisors (11631993).

28248951 is a wasteful number, since it uses less digits than its factorization.

28248951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553921.

The product of its digits is 46080, while the sum is 39.

The square root of 28248951 is about 5314.9742238321. The cubic root of 28248951 is about 304.5561976836.

The spelling of 28248951 in words is "twenty-eight million, two hundred forty-eight thousand, nine hundred fifty-one".