28920662 has 8 divisors (see below), whose sum is σ = 44439192. Its totient is φ = 14107600.

The previous prime is 28920607. The next prime is 28920667. The reversal of 28920662 is 26602982.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28920667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176264 + ... + 176427.

It is an arithmetic number, because the mean of its divisors is an integer number (5554899).

Almost surely, 2^28920662 is an apocalyptic number.

28920662 is a deficient number, since it is larger than the sum of its proper divisors (15518530).

28920662 is a wasteful number, since it uses less digits than its factorization.

28920662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352734.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 28920662 is about 5377.7934136595. The cubic root of 28920662 is about 306.9512525740.

The spelling of 28920662 in words is "twenty-eight million, nine hundred twenty thousand, six hundred sixty-two".