28469746 has 4 divisors (see below), whose sum is σ = 42704622. Its totient is φ = 14234872.

The previous prime is 28469731. The next prime is 28469759. The reversal of 28469746 is 64796482.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14861025 + 13608721 = 3855^2 + 3689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28469696 and 28469705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7117435 + ... + 7117438.

Almost surely, 2^28469746 is an apocalyptic number.

28469746 is a deficient number, since it is larger than the sum of its proper divisors (14234876).

28469746 is a wasteful number, since it uses less digits than its factorization.

28469746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14234875.

The product of its digits is 580608, while the sum is 46.

The square root of 28469746 is about 5335.7048269184. The cubic root of 28469746 is about 305.3476140589.

The spelling of 28469746 in words is "twenty-eight million, four hundred sixty-nine thousand, seven hundred forty-six".