61972205 has 8 divisors (see below), whose sum is σ = 78280800. Its totient is φ = 46968336.

The previous prime is 61972201. The next prime is 61972219. The reversal of 61972205 is 50227916.

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 61972205 - 2² = 61972201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61972201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326075 + ... + 326264.

It is an arithmetic number, because the mean of its divisors is an integer number (9785100).

Almost surely, 2^61972205 is an apocalyptic number.

It is an amenable number.

61972205 is a deficient number, since it is larger than the sum of its proper divisors (16308595).

61972205 is a wasteful number, since it uses less digits than its factorization.

61972205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652363.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 61972205 is about 7872.2426918890. The cubic root of 61972205 is about 395.7300071827.

The spelling of 61972205 in words is "sixty-one million, nine hundred seventy-two thousand, two hundred five".