28453673 has 2 divisors, whose sum is σ = 28453674. Its totient is φ = 28453672.

The previous prime is 28453637. The next prime is 28453679. The reversal of 28453673 is 37635482.

Together with previous prime (28453637) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28270489 + 183184 = 5317^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 28453673 - 2¹⁶ = 28388137 is a prime.

It is a super-2 number, since 2×28453673² = 1619223014381858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28453679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14226836 + 14226837.

It is an arithmetic number, because the mean of its divisors is an integer number (14226837).

Almost surely, 2^28453673 is an apocalyptic number.

It is an amenable number.

28453673 is a deficient number, since it is larger than the sum of its proper divisors (1).

28453673 is an equidigital number, since it uses as much as digits as its factorization.

28453673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 38.

The square root of 28453673 is about 5334.1984402532. The cubic root of 28453673 is about 305.2901404623.

The spelling of 28453673 in words is "twenty-eight million, four hundred fifty-three thousand, six hundred seventy-three".