61744313 has 4 divisors (see below), whose sum is σ = 61772928. Its totient is φ = 61715700.

The previous prime is 61744307. The next prime is 61744339. The reversal of 61744313 is 31344716.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61744313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61744513) 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, 10781 + ... + 15482.

It is an arithmetic number, because the mean of its divisors is an integer number (15443232).

Almost surely, 2^61744313 is an apocalyptic number.

It is an amenable number.

61744313 is a deficient number, since it is larger than the sum of its proper divisors (28615).

61744313 is a wasteful number, since it uses less digits than its factorization.

61744313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28614.

The product of its digits is 6048, while the sum is 29.

The square root of 61744313 is about 7857.7549592743. The cubic root of 61744313 is about 395.2443352908.

The spelling of 61744313 in words is "sixty-one million, seven hundred forty-four thousand, three hundred thirteen".