28454831 has 8 divisors (see below), whose sum is σ = 29016144. Its totient is φ = 27899200.

The previous prime is 28454819. The next prime is 28454843. The reversal of 28454831 is 13845482.

It is an interprime number because it is at equal distance from previous prime (28454819) and next prime (28454843).

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 28454831 - 2²² = 24260527 is a prime.

It is a super-2 number, since 2×28454831² = 1619354814477122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28454791 and 28454800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28414831) 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, 9491 + ... + 12123.

It is an arithmetic number, because the mean of its divisors is an integer number (3627018).

Almost surely, 2^28454831 is an apocalyptic number.

28454831 is a deficient number, since it is larger than the sum of its proper divisors (561313).

28454831 is a wasteful number, since it uses less digits than its factorization.

28454831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841.

The product of its digits is 30720, while the sum is 35.

The square root of 28454831 is about 5334.3069840421. The cubic root of 28454831 is about 305.2942819450.

The spelling of 28454831 in words is "twenty-eight million, four hundred fifty-four thousand, eight hundred thirty-one".