28424363 has 4 divisors (see below), whose sum is σ = 31008408. Its totient is φ = 25840320.

The previous prime is 28424351. The next prime is 28424381. The reversal of 28424363 is 36342482.

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

It is not a de Polignac number, because 28424363 - 2⁸ = 28424107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28424393) 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, 1292006 + ... + 1292027.

It is an arithmetic number, because the mean of its divisors is an integer number (7752102).

Almost surely, 2^28424363 is an apocalyptic number.

28424363 is a deficient number, since it is larger than the sum of its proper divisors (2584045).

28424363 is a wasteful number, since it uses less digits than its factorization.

28424363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584044.

The product of its digits is 27648, while the sum is 32.

The square root of 28424363 is about 5331.4503655197. The cubic root of 28424363 is about 305.1852784500.

The spelling of 28424363 in words is "twenty-eight million, four hundred twenty-four thousand, three hundred sixty-three".