61690196 has 12 divisors (see below), whose sum is σ = 109478880. Its totient is φ = 30410520.

The previous prime is 61690177. The next prime is 61690249. The reversal of 61690196 is 69109616.

61690196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 108326 + ... + 108893.

It is an arithmetic number, because the mean of its divisors is an integer number (9123240).

Almost surely, 2^61690196 is an apocalyptic number.

It is an amenable number.

61690196 is a deficient number, since it is larger than the sum of its proper divisors (47788684).

61690196 is a wasteful number, since it uses less digits than its factorization.

61690196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217294 (or 217292 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 61690196 is about 7854.3106635783. The cubic root of 61690196 is about 395.1288283517.

The spelling of 61690196 in words is "sixty-one million, six hundred ninety thousand, one hundred ninety-six".