61672241 has 8 divisors (see below), whose sum is σ = 65356200. Its totient is φ = 58092160.

The previous prime is 61672217. The next prime is 61672249. The reversal of 61672241 is 14227616.

61672241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 519841 + 61152400 = 721^2 + 7820^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61672241 - 2¹⁰ = 61671217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61672249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24746 + ... + 27123.

It is an arithmetic number, because the mean of its divisors is an integer number (8169525).

Almost surely, 2^61672241 is an apocalyptic number.

It is an amenable number.

61672241 is a deficient number, since it is larger than the sum of its proper divisors (3683959).

61672241 is a wasteful number, since it uses less digits than its factorization.

61672241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51939.

The product of its digits is 4032, while the sum is 29.

The square root of 61672241 is about 7853.1675774811. The cubic root of 61672241 is about 395.0904904040.

Adding to 61672241 its reverse (14227616), we get a palindrome (75899857).

The spelling of 61672241 in words is "sixty-one million, six hundred seventy-two thousand, two hundred forty-one".