28424377 has 8 divisors (see below), whose sum is σ = 29082240. Its totient is φ = 27771120.

The previous prime is 28424351. The next prime is 28424381. The reversal of 28424377 is 77342482.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28424377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28424327) 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, 13374 + ... + 15352.

It is an arithmetic number, because the mean of its divisors is an integer number (3635280).

Almost surely, 2^28424377 is an apocalyptic number.

It is an amenable number.

28424377 is a deficient number, since it is larger than the sum of its proper divisors (657863).

28424377 is a wasteful number, since it uses less digits than its factorization.

28424377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303.

The product of its digits is 75264, while the sum is 37.

The square root of 28424377 is about 5331.4516784831. The cubic root of 28424377 is about 305.1853285548.

The spelling of 28424377 in words is "twenty-eight million, four hundred twenty-four thousand, three hundred seventy-seven".