28627601 has 4 divisors (see below), whose sum is σ = 29551104. Its totient is φ = 27704100.

The previous prime is 28627597. The next prime is 28627631. The reversal of 28627601 is 10672682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28627601 - 2² = 28627597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28627631) 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, 461705 + ... + 461766.

It is an arithmetic number, because the mean of its divisors is an integer number (7387776).

Almost surely, 2^28627601 is an apocalyptic number.

It is an amenable number.

28627601 is a deficient number, since it is larger than the sum of its proper divisors (923503).

28627601 is an equidigital number, since it uses as much as digits as its factorization.

28627601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923502.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 28627601 is about 5350.4767077336. The cubic root of 28627601 is about 305.9109235648.

The spelling of 28627601 in words is "twenty-eight million, six hundred twenty-seven thousand, six hundred one".