61889227 has 4 divisors (see below), whose sum is σ = 62155080. Its totient is φ = 61623376.

The previous prime is 61889207. The next prime is 61889239. The reversal of 61889227 is 72298816.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61889227 - 2¹¹ = 61887179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61889207) 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, 132577 + ... + 133042.

It is an arithmetic number, because the mean of its divisors is an integer number (15538770).

Almost surely, 2^61889227 is an apocalyptic number.

61889227 is a deficient number, since it is larger than the sum of its proper divisors (265853).

61889227 is a wasteful number, since it uses less digits than its factorization.

61889227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265852.

The product of its digits is 96768, while the sum is 43.

The square root of 61889227 is about 7866.9706367826. The cubic root of 61889227 is about 395.5533067240.

The spelling of 61889227 in words is "sixty-one million, eight hundred eighty-nine thousand, two hundred twenty-seven".