27622001 has 6 divisors (see below), whose sum is σ = 30361506. Its totient is φ = 25110800.

The previous prime is 27621983. The next prime is 27622003. The reversal of 27622001 is 10022672.

It can be written as a sum of positive squares in only one way, i.e., 20939776 + 6682225 = 4576^2 + 2585^2 .

It is not a de Polignac number, because 27622001 - 2¹⁰ = 27620977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27622003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114020 + ... + 114261.

It is an arithmetic number, because the mean of its divisors is an integer number (5060251).

Almost surely, 2^27622001 is an apocalyptic number.

It is an amenable number.

27622001 is a deficient number, since it is larger than the sum of its proper divisors (2739505).

27622001 is a wasteful number, since it uses less digits than its factorization.

27622001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228303 (or 228292 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 27622001 is about 5255.6637068975. The cubic root of 27622001 is about 302.2862401680.

Adding to 27622001 its reverse (10022672), we get a palindrome (37644673).

The spelling of 27622001 in words is "twenty-seven million, six hundred twenty-two thousand, one".