28496661 has 8 divisors (see below), whose sum is σ = 38120544. Its totient is φ = 18935280.

The previous prime is 28496651. The next prime is 28496693. The reversal of 28496661 is 16669482.

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

It is not a de Polignac number, because 28496661 - 2⁶ = 28496597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28496651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14550 + ... + 16391.

It is an arithmetic number, because the mean of its divisors is an integer number (4765068).

Almost surely, 2^28496661 is an apocalyptic number.

It is an amenable number.

28496661 is a deficient number, since it is larger than the sum of its proper divisors (9623883).

28496661 is a wasteful number, since it uses less digits than its factorization.

28496661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31251.

The product of its digits is 124416, while the sum is 42.

The square root of 28496661 is about 5338.2263908531. The cubic root of 28496661 is about 305.4438078982.

The spelling of 28496661 in words is "twenty-eight million, four hundred ninety-six thousand, six hundred sixty-one".