61909696 has 28 divisors (see below), whose sum is σ = 123494800. Its totient is φ = 30792960.

The previous prime is 61909691. The next prime is 61909709. The reversal of 61909696 is 69690916.

It is not an unprimeable number, because it can be changed into a prime (61909691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10306 + ... + 15166.

Almost surely, 2^61909696 is an apocalyptic number.

It is an amenable number.

61909696 is a deficient number, since it is larger than the sum of its proper divisors (61585104).

61909696 is a wasteful number, since it uses less digits than its factorization.

61909696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072 (or 5062 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 61909696 is about 7868.2714747268. The cubic root of 61909696 is about 395.5969098333.

The spelling of 61909696 in words is "sixty-one million, nine hundred nine thousand, six hundred ninety-six".