28456007 has 2 divisors, whose sum is σ = 28456008. Its totient is φ = 28456006.

The previous prime is 28455983. The next prime is 28456063. The reversal of 28456007 is 70065482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28456007 - 2¹⁰ = 28454983 is a prime.

It is equal to p_1768019 and since 28456007 and 1768019 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28456097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14228003 + 14228004.

It is an arithmetic number, because the mean of its divisors is an integer number (14228004).

Almost surely, 2^28456007 is an apocalyptic number.

28456007 is a deficient number, since it is larger than the sum of its proper divisors (1).

28456007 is an equidigital number, since it uses as much as digits as its factorization.

28456007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 28456007 is about 5334.4172127797. The cubic root of 28456007 is about 305.2984876882.

The spelling of 28456007 in words is "twenty-eight million, four hundred fifty-six thousand, seven".