28494607 has 4 divisors (see below), whose sum is σ = 28527976. Its totient is φ = 28461240.

The previous prime is 28494593. The next prime is 28494619. The reversal of 28494607 is 70649482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70649482 = 2 ⋅35324741.

It is a cyclic number.

It is not a de Polignac number, because 28494607 - 2¹¹ = 28492559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28494607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28494637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15369 + ... + 17122.

It is an arithmetic number, because the mean of its divisors is an integer number (7131994).

Almost surely, 2^28494607 is an apocalyptic number.

28494607 is a deficient number, since it is larger than the sum of its proper divisors (33369).

28494607 is an equidigital number, since it uses as much as digits as its factorization.

28494607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33368.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 28494607 is about 5338.0340013904. The cubic root of 28494607 is about 305.4364690658.

The spelling of 28494607 in words is "twenty-eight million, four hundred ninety-four thousand, six hundred seven".