28435706 has 8 divisors (see below), whose sum is σ = 45934644. Its totient is φ = 13124160.

The previous prime is 28435703. The next prime is 28435709. The reversal of 28435706 is 60753482.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28435703) and next prime (28435709).

It can be written as a sum of positive squares in 2 ways, for example, as 28143025 + 292681 = 5305^2 + 541^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28435703) 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, 546815 + ... + 546866.

Almost surely, 2^28435706 is an apocalyptic number.

28435706 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28435706 is a deficient number, since it is larger than the sum of its proper divisors (17498938).

28435706 is a wasteful number, since it uses less digits than its factorization.

28435706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093696.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 28435706 is about 5332.5140412380. The cubic root of 28435706 is about 305.2258687028.

The spelling of 28435706 in words is "twenty-eight million, four hundred thirty-five thousand, seven hundred six".