28453706 has 16 divisors (see below), whose sum is σ = 43752960. Its totient is φ = 13871760.

The previous prime is 28453693. The next prime is 28453709. The reversal of 28453706 is 60735482.

It is a happy number.

It is a super-2 number, since 2×28453706² = 1619226770268872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28453709) 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, 39215 + ... + 39933.

It is an arithmetic number, because the mean of its divisors is an integer number (2734560).

Almost surely, 2^28453706 is an apocalyptic number.

28453706 is a deficient number, since it is larger than the sum of its proper divisors (15299254).

28453706 is a wasteful number, since it uses less digits than its factorization.

28453706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189.

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

The square root of 28453706 is about 5334.2015335006. The cubic root of 28453706 is about 305.2902584854.

The spelling of 28453706 in words is "twenty-eight million, four hundred fifty-three thousand, seven hundred six".