61744361 has 12 divisors (see below), whose sum is σ = 72380880. Its totient is φ = 52514280.

The previous prime is 61744339. The next prime is 61744399. The reversal of 61744361 is 16344716.

It is not a de Polignac number, because 61744361 - 2¹⁴ = 61727977 is a prime.

It is a super-2 number, since 2×61744361² = 7624732230596642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61744961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1610 + ... + 11228.

It is an arithmetic number, because the mean of its divisors is an integer number (6031740).

Almost surely, 2^61744361 is an apocalyptic number.

It is an amenable number.

61744361 is a deficient number, since it is larger than the sum of its proper divisors (10636519).

61744361 is a wasteful number, since it uses less digits than its factorization.

61744361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9764 (or 9757 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 61744361 is about 7857.7580135812. The cubic root of 61744361 is about 395.2444377117.

The spelling of 61744361 in words is "sixty-one million, seven hundred forty-four thousand, three hundred sixty-one".