28627617 has 8 divisors (see below), whose sum is σ = 39829824. Its totient is φ = 18255248.

The previous prime is 28627597. The next prime is 28627631. The reversal of 28627617 is 71672682.

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

It is a cyclic number.

It is not a de Polignac number, because 28627617 - 2¹⁰ = 28626593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28627217) 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, 207378 + ... + 207515.

It is an arithmetic number, because the mean of its divisors is an integer number (4978728).

Almost surely, 2^28627617 is an apocalyptic number.

It is an amenable number.

28627617 is a deficient number, since it is larger than the sum of its proper divisors (11202207).

28627617 is a wasteful number, since it uses less digits than its factorization.

28627617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414919.

The product of its digits is 56448, while the sum is 39.

The square root of 28627617 is about 5350.4782029273. The cubic root of 28627617 is about 305.9109805561.

The spelling of 28627617 in words is "twenty-eight million, six hundred twenty-seven thousand, six hundred seventeen".