28613007 has 24 divisors (see below), whose sum is σ = 43474704. Its totient is φ = 18802368.

The previous prime is 28613003. The next prime is 28613027. The reversal of 28613007 is 70031682.

It is not a de Polignac number, because 28613007 - 2² = 28613003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28613003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16933 + ... + 18545.

It is an arithmetic number, because the mean of its divisors is an integer number (1811446).

Almost surely, 2^28613007 is an apocalyptic number.

28613007 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

28613007 is a deficient number, since it is larger than the sum of its proper divisors (14861697).

28613007 is an equidigital number, since it uses as much as digits as its factorization.

28613007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 28613007 is about 5349.1127301638. The cubic root of 28613007 is about 305.8589315161.

Adding to 28613007 its reverse (70031682), we get a palindrome (98644689).

The spelling of 28613007 in words is "twenty-eight million, six hundred thirteen thousand, seven".