28425007 has 16 divisors (see below), whose sum is σ = 32472160. Its totient is φ = 24665472.

The previous prime is 28424993. The next prime is 28425029. The reversal of 28425007 is 70052482.

It is not a de Polignac number, because 28425007 - 2¹¹ = 28422959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28425077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38413 + ... + 39145.

It is an arithmetic number, because the mean of its divisors is an integer number (2029510).

Almost surely, 2^28425007 is an apocalyptic number.

28425007 is a deficient number, since it is larger than the sum of its proper divisors (4047153).

28425007 is a wasteful number, since it uses less digits than its factorization.

28425007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 28425007 is about 5331.5107615009. The cubic root of 28425007 is about 305.1875832549.

Adding to 28425007 its reverse (70052482), we get a palindrome (98477489).

The spelling of 28425007 in words is "twenty-eight million, four hundred twenty-five thousand, seven".