28253078 has 8 divisors (see below), whose sum is σ = 48433872. Its totient is φ = 12108456.

The previous prime is 28253053. The next prime is 28253083. The reversal of 28253078 is 87035282.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009025 + ... + 1009052.

It is an arithmetic number, because the mean of its divisors is an integer number (6054234).

Almost surely, 2^28253078 is an apocalyptic number.

28253078 is a deficient number, since it is larger than the sum of its proper divisors (20180794).

28253078 is a wasteful number, since it uses less digits than its factorization.

28253078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018086.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 28253078 is about 5315.3624523639. The cubic root of 28253078 is about 304.5710282311.

The spelling of 28253078 in words is "twenty-eight million, two hundred fifty-three thousand, seventy-eight".