28079415 has 48 divisors (see below), whose sum is σ = 59911488. Its totient is φ = 11847168.

The previous prime is 28079407. The next prime is 28079417. The reversal of 28079415 is 51497082.

It is not a de Polignac number, because 28079415 - 2³ = 28079407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28079415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28079417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 667 + ... + 7523.

It is an arithmetic number, because the mean of its divisors is an integer number (1248156).

Almost surely, 2^28079415 is an apocalyptic number.

28079415 is an abundant number, since it is smaller than the sum of its proper divisors (31832073).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28079415 is a wasteful number, since it uses less digits than its factorization.

28079415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6888 (or 6885 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 28079415 is about 5299.0013210038. The cubic root of 28079415 is about 303.9457103826.

The spelling of 28079415 in words is "twenty-eight million, seventy-nine thousand, four hundred fifteen".