61968722 has 4 divisors (see below), whose sum is σ = 92953086. Its totient is φ = 30984360.

The previous prime is 61968707. The next prime is 61968733. The reversal of 61968722 is 22786916.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43573201 + 18395521 = 6601^2 + 4289^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61968722.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15492179 + ... + 15492182.

Almost surely, 2^61968722 is an apocalyptic number.

61968722 is a deficient number, since it is larger than the sum of its proper divisors (30984364).

61968722 is a wasteful number, since it uses less digits than its factorization.

61968722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30984363.

The product of its digits is 72576, while the sum is 41.

The square root of 61968722 is about 7872.0214684667. The cubic root of 61968722 is about 395.7225933567.

The spelling of 61968722 in words is "sixty-one million, nine hundred sixty-eight thousand, seven hundred twenty-two".