61729196 has 12 divisors (see below), whose sum is σ = 108175200. Its totient is φ = 30822000.

The previous prime is 61729169. The next prime is 61729211. The reversal of 61729196 is 69192716.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7271 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (9014600).

Almost surely, 2^61729196 is an apocalyptic number.

It is an amenable number.

61729196 is a deficient number, since it is larger than the sum of its proper divisors (46446004).

61729196 is a wasteful number, since it uses less digits than its factorization.

61729196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21304 (or 21302 counting only the distinct ones).

The product of its digits is 40824, while the sum is 41.

The square root of 61729196 is about 7856.7929844180. The cubic root of 61729196 is about 395.2120764694.

The spelling of 61729196 in words is "sixty-one million, seven hundred twenty-nine thousand, one hundred ninety-six".