61712223 has 4 divisors (see below), whose sum is σ = 82282968. Its totient is φ = 41141480.

The previous prime is 61712207. The next prime is 61712237. The reversal of 61712223 is 32221716.

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 61712223 - 2⁴ = 61712207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61712193 and 61712202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61712423) 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, 10285368 + ... + 10285373.

It is an arithmetic number, because the mean of its divisors is an integer number (20570742).

Almost surely, 2^61712223 is an apocalyptic number.

61712223 is a deficient number, since it is larger than the sum of its proper divisors (20570745).

61712223 is a wasteful number, since it uses less digits than its factorization.

61712223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20570744.

The product of its digits is 1008, while the sum is 24.

The square root of 61712223 is about 7855.7127620605. The cubic root of 61712223 is about 395.1758507723.

Adding to 61712223 its reverse (32221716), we get a palindrome (93933939).

The spelling of 61712223 in words is "sixty-one million, seven hundred twelve thousand, two hundred twenty-three".