61617441 has 8 divisors (see below), whose sum is σ = 82374880. Its totient is φ = 40969152.

The previous prime is 61617427. The next prime is 61617467. The reversal of 61617441 is 14471616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-61617441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61617399 and 61617408.

It is not an unprimeable number, because it can be changed into a prime (61617041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25960 + ... + 28233.

It is an arithmetic number, because the mean of its divisors is an integer number (10296860).

Almost surely, 2^61617441 is an apocalyptic number.

It is an amenable number.

61617441 is a deficient number, since it is larger than the sum of its proper divisors (20757439).

61617441 is a wasteful number, since it uses less digits than its factorization.

61617441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54575.

The product of its digits is 4032, while the sum is 30.

The square root of 61617441 is about 7849.6777640869. The cubic root of 61617441 is about 394.9734340943.

The spelling of 61617441 in words is "sixty-one million, six hundred seventeen thousand, four hundred forty-one".