61965772 has 24 divisors (see below), whose sum is σ = 123443712. Its totient is φ = 26941200.

The previous prime is 61965689. The next prime is 61965773. The reversal of 61965772 is 27756916.

61965772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61965773) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29604 + ... + 31627.

It is an arithmetic number, because the mean of its divisors is an integer number (5143488).

Almost surely, 2^61965772 is an apocalyptic number.

It is an amenable number.

61965772 is a deficient number, since it is larger than the sum of its proper divisors (61477940).

61965772 is a wasteful number, since it uses less digits than its factorization.

61965772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61269 (or 61267 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 61965772 is about 7871.8340937802. The cubic root of 61965772 is about 395.7163138437.

Subtracting from 61965772 its reverse (27756916), we obtain a triangular number (34208856 = T₈₂₇₁).

The spelling of 61965772 in words is "sixty-one million, nine hundred sixty-five thousand, seven hundred seventy-two".