28531954 has 8 divisors (see below), whose sum is σ = 46688688. Its totient is φ = 12969060.

The previous prime is 28531913. The next prime is 28531973. The reversal of 28531954 is 45913582.

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

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, 648432 + ... + 648475.

It is an arithmetic number, because the mean of its divisors is an integer number (5836086).

Almost surely, 2^28531954 is an apocalyptic number.

28531954 is a deficient number, since it is larger than the sum of its proper divisors (18156734).

28531954 is a wasteful number, since it uses less digits than its factorization.

28531954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296920.

The product of its digits is 43200, while the sum is 37.

The square root of 28531954 is about 5341.5310539208. The cubic root of 28531954 is about 305.5698528529.

The spelling of 28531954 in words is "twenty-eight million, five hundred thirty-one thousand, nine hundred fifty-four".