28631119 has 8 divisors (see below), whose sum is σ = 32878080. Its totient is φ = 24658200.

The previous prime is 28631117. The next prime is 28631129. The reversal of 28631119 is 91113682.

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

It is not a de Polignac number, because 28631119 - 2¹ = 28631117 is a prime.

It is a super-2 number, since 2×28631119² = 1639481950384322, 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 (28631117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68287 + ... + 68704.

It is an arithmetic number, because the mean of its divisors is an integer number (4109760).

Almost surely, 2^28631119 is an apocalyptic number.

28631119 is a deficient number, since it is larger than the sum of its proper divisors (4246961).

28631119 is a wasteful number, since it uses less digits than its factorization.

28631119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137021.

The product of its digits is 2592, while the sum is 31.

The square root of 28631119 is about 5350.8054533874. The cubic root of 28631119 is about 305.9234540192.

The spelling of 28631119 in words is "twenty-eight million, six hundred thirty-one thousand, one hundred nineteen".