28154966 has 8 divisors (see below), whose sum is σ = 48265680. Its totient is φ = 12066408.

The previous prime is 28154957. The next prime is 28154993. The reversal of 28154966 is 66945182.

It is a happy number.

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

It is a super-2 number, since 2×28154966² = 1585404220922312, which contains 22 as substring.

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, 1005521 + ... + 1005548.

It is an arithmetic number, because the mean of its divisors is an integer number (6033210).

Almost surely, 2^28154966 is an apocalyptic number.

28154966 is a deficient number, since it is larger than the sum of its proper divisors (20110714).

28154966 is a wasteful number, since it uses less digits than its factorization.

28154966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011078.

The product of its digits is 103680, while the sum is 41.

The square root of 28154966 is about 5306.1253283352. The cubic root of 28154966 is about 304.2180669333.

The spelling of 28154966 in words is "twenty-eight million, one hundred fifty-four thousand, nine hundred sixty-six".