28370157 has 8 divisors (see below), whose sum is σ = 38849376. Its totient is φ = 18402192.

The previous prime is 28370143. The next prime is 28370179. The reversal of 28370157 is 75107382.

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

It is not a de Polignac number, because 28370157 - 2⁷ = 28370029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28370107) 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, 127683 + ... + 127904.

It is an arithmetic number, because the mean of its divisors is an integer number (4856172).

Almost surely, 2^28370157 is an apocalyptic number.

It is an amenable number.

28370157 is a deficient number, since it is larger than the sum of its proper divisors (10479219).

28370157 is a wasteful number, since it uses less digits than its factorization.

28370157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255627.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 28370157 is about 5326.3643322627. The cubic root of 28370157 is about 304.9911562427.

The spelling of 28370157 in words is "twenty-eight million, three hundred seventy thousand, one hundred fifty-seven".