28654330 has 8 divisors (see below), whose sum is σ = 51577812. Its totient is φ = 11461728.

The previous prime is 28654319. The next prime is 28654331. The reversal of 28654330 is 3345682.

It can be written as a sum of positive squares in 2 ways, for example, as 26020201 + 2634129 = 5101^2 + 1623^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28654292 and 28654301.

It is not an unprimeable number, because it can be changed into a prime (28654331) 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, 1432707 + ... + 1432726.

Almost surely, 2^28654330 is an apocalyptic number.

28654330 is a deficient number, since it is larger than the sum of its proper divisors (22923482).

28654330 is a wasteful number, since it uses less digits than its factorization.

28654330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865440.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 28654330 is about 5352.9739397834. The cubic root of 28654330 is about 306.0061015202.

The spelling of 28654330 in words is "twenty-eight million, six hundred fifty-four thousand, three hundred thirty".