28572119 has 4 divisors (see below), whose sum is σ = 28589880. Its totient is φ = 28554360.

The previous prime is 28572109. The next prime is 28572139. The reversal of 28572119 is 91127582.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28572119 is a prime.

It is a super-2 number, since 2×28572119² = 1632731968300322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28572109) 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, 6197 + ... + 9774.

It is an arithmetic number, because the mean of its divisors is an integer number (7147470).

Almost surely, 2^28572119 is an apocalyptic number.

28572119 is a deficient number, since it is larger than the sum of its proper divisors (17761).

28572119 is a wasteful number, since it uses less digits than its factorization.

28572119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17760.

The product of its digits is 10080, while the sum is 35.

The square root of 28572119 is about 5345.2894215374. The cubic root of 28572119 is about 305.7131712128.

The spelling of 28572119 in words is "twenty-eight million, five hundred seventy-two thousand, one hundred nineteen".