61744716 has 36 divisors (see below), whose sum is σ = 170266824. Its totient is φ = 18710400.

The previous prime is 61744703. The next prime is 61744717.

61744716 is nontrivially palindromic in base 10.

61744716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61744717) 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 11 ways as a sum of consecutive naturals, for example, 77565 + ... + 78356.

It is an arithmetic number, because the mean of its divisors is an integer number (4729634).

Almost surely, 2^61744716 is an apocalyptic number.

61744716 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

61744716 is an abundant number, since it is smaller than the sum of its proper divisors (108522108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61744716 is a wasteful number, since it uses less digits than its factorization.

61744716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155942 (or 155937 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 61744716 is about 7857.7806026893. The cubic root of 61744716 is about 395.2451951979.

The spelling of 61744716 in words is "sixty-one million, seven hundred forty-four thousand, seven hundred sixteen".