28831417 has 8 divisors (see below), whose sum is σ = 30922560. Its totient is φ = 26797680.

The previous prime is 28831409. The next prime is 28831427. The reversal of 28831417 is 71413882.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 28831417 - 2³ = 28831409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28831427) 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, 13309 + ... + 15322.

It is an arithmetic number, because the mean of its divisors is an integer number (3865320).

Almost surely, 2^28831417 is an apocalyptic number.

It is an amenable number.

28831417 is a deficient number, since it is larger than the sum of its proper divisors (2091143).

28831417 is a wasteful number, since it uses less digits than its factorization.

28831417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28703.

The product of its digits is 10752, while the sum is 34.

The square root of 28831417 is about 5369.4894543150. The cubic root of 28831417 is about 306.6351914503.

The spelling of 28831417 in words is "twenty-eight million, eight hundred thirty-one thousand, four hundred seventeen".