28613407 has 8 divisors (see below), whose sum is σ = 29293200. Its totient is φ = 27940224.

The previous prime is 28613383. The next prime is 28613419. The reversal of 28613407 is 70431682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28613407 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 (28613437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7719 + ... + 10807.

It is an arithmetic number, because the mean of its divisors is an integer number (3661650).

Almost surely, 2^28613407 is an apocalyptic number.

28613407 is a deficient number, since it is larger than the sum of its proper divisors (679793).

28613407 is a wasteful number, since it uses less digits than its factorization.

28613407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 28613407 is about 5349.1501194115. The cubic root of 28613407 is about 305.8603567770.

The spelling of 28613407 in words is "twenty-eight million, six hundred thirteen thousand, four hundred seven".