61968472 has 8 divisors (see below), whose sum is σ = 116190900. Its totient is φ = 30984232.

The previous prime is 61968457. The next prime is 61968479. The reversal of 61968472 is 27486916.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61968479) 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 as a sum of consecutive naturals, namely, 3873022 + ... + 3873037.

Almost surely, 2^61968472 is an apocalyptic number.

It is an amenable number.

61968472 is a deficient number, since it is larger than the sum of its proper divisors (54222428).

61968472 is a wasteful number, since it uses less digits than its factorization.

61968472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7746065 (or 7746061 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 61968472 is about 7872.0055894289. The cubic root of 61968472 is about 395.7220612023.

The spelling of 61968472 in words is "sixty-one million, nine hundred sixty-eight thousand, four hundred seventy-two".