61744601 has 4 divisors (see below), whose sum is σ = 63413412. Its totient is φ = 60075792.

The previous prime is 61744597. The next prime is 61744607. The reversal of 61744601 is 10644716.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33918976 + 27825625 = 5824^2 + 5275^2 .

It is a cyclic number.

It is not a de Polignac number, because 61744601 - 2² = 61744597 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61744607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834350 + ... + 834423.

It is an arithmetic number, because the mean of its divisors is an integer number (15853353).

Almost surely, 2^61744601 is an apocalyptic number.

It is an amenable number.

61744601 is a deficient number, since it is larger than the sum of its proper divisors (1668811).

61744601 is a wasteful number, since it uses less digits than its factorization.

61744601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668810.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 61744601 is about 7857.7732850980. The cubic root of 61744601 is about 395.2449498153.

The spelling of 61744601 in words is "sixty-one million, seven hundred forty-four thousand, six hundred one".