28662949 has 8 divisors (see below), whose sum is σ = 32799168. Its totient is φ = 24537120.

The previous prime is 28662947. The next prime is 28662973. The reversal of 28662949 is 94926682.

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

It is a cyclic number.

It is not a de Polignac number, because 28662949 - 2¹ = 28662947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28662899 and 28662908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28662947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4689 + ... + 8905.

It is an arithmetic number, because the mean of its divisors is an integer number (4099896).

Almost surely, 2^28662949 is an apocalyptic number.

It is an amenable number.

28662949 is a deficient number, since it is larger than the sum of its proper divisors (4136219).

28662949 is an equidigital number, since it uses as much as digits as its factorization.

28662949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195.

The product of its digits is 373248, while the sum is 46.

The square root of 28662949 is about 5353.7789457541. The cubic root of 28662949 is about 306.0367798643.

The spelling of 28662949 in words is "twenty-eight million, six hundred sixty-two thousand, nine hundred forty-nine".