61622243 has 4 divisors (see below), whose sum is σ = 61638528. Its totient is φ = 61605960.

The previous prime is 61622233. The next prime is 61622273. The reversal of 61622243 is 34222616.

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 61622243 - 2⁴ = 61622227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61622233) 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, 830 + ... + 11132.

It is an arithmetic number, because the mean of its divisors is an integer number (15409632).

Almost surely, 2^61622243 is an apocalyptic number.

61622243 is a deficient number, since it is larger than the sum of its proper divisors (16285).

61622243 is a wasteful number, since it uses less digits than its factorization.

61622243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16284.

The product of its digits is 3456, while the sum is 26.

The square root of 61622243 is about 7849.9836305562. The cubic root of 61622243 is about 394.9836942476.

Adding to 61622243 its reverse (34222616), we get a palindrome (95844859).

The spelling of 61622243 in words is "sixty-one million, six hundred twenty-two thousand, two hundred forty-three".