28080357 has 8 divisors (see below), whose sum is σ = 37464960. Its totient is φ = 18708000.

The previous prime is 28080343. The next prime is 28080359. The reversal of 28080357 is 75308082.

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

It is not a de Polignac number, because 28080357 - 2⁷ = 28080229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28080359) 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, 7444 + ... + 10562.

It is an arithmetic number, because the mean of its divisors is an integer number (4683120).

Almost surely, 2^28080357 is an apocalyptic number.

It is an amenable number.

28080357 is a deficient number, since it is larger than the sum of its proper divisors (9384603).

28080357 is a wasteful number, since it uses less digits than its factorization.

28080357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6123.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 28080357 is about 5299.0902049314. The cubic root of 28080357 is about 303.9491092386.

The spelling of 28080357 in words is "twenty-eight million, eighty thousand, three hundred fifty-seven".