61306673 has 8 divisors (see below), whose sum is σ = 64605600. Its totient is φ = 58015008.

The previous prime is 61306649. The next prime is 61306741. The reversal of 61306673 is 37660316.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 61306673 - 2⁸ = 61306417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61306633) 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, 29765 + ... + 31757.

It is an arithmetic number, because the mean of its divisors is an integer number (8075700).

Almost surely, 2^61306673 is an apocalyptic number.

It is an amenable number.

61306673 is a deficient number, since it is larger than the sum of its proper divisors (3298927).

61306673 is a wasteful number, since it uses less digits than its factorization.

61306673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 61306673 is about 7829.8577892577. The cubic root of 61306673 is about 394.3082975270.

Adding to 61306673 its reverse (37660316), we get a palindrome (98966989).

The spelling of 61306673 in words is "sixty-one million, three hundred six thousand, six hundred seventy-three".