28423610 has 8 divisors (see below), whose sum is σ = 51162516. Its totient is φ = 11369440.

The previous prime is 28423583. The next prime is 28423613. The reversal of 28423610 is 1632482.

It can be written as a sum of positive squares in 2 ways, for example, as 26122321 + 2301289 = 5111^2 + 1517^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 28423610.

It is not an unprimeable number, because it can be changed into a prime (28423613) 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, 1421171 + ... + 1421190.

Almost surely, 2^28423610 is an apocalyptic number.

28423610 is a deficient number, since it is larger than the sum of its proper divisors (22738906).

28423610 is a wasteful number, since it uses less digits than its factorization.

28423610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2842368.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 28423610 is about 5331.3797463696. The cubic root of 28423610 is about 305.1825835019.

The spelling of 28423610 in words is "twenty-eight million, four hundred twenty-three thousand, six hundred ten".