61368617 has 4 divisors (see below), whose sum is σ = 61494096. Its totient is φ = 61243140.

The previous prime is 61368569. The next prime is 61368661. The reversal of 61368617 is 71686316.

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 not a de Polignac number, because 61368617 - 2¹⁴ = 61352233 is a prime.

It is a super-3 number, since 3×61368617³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61362617) 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, 62003 + ... + 62984.

It is an arithmetic number, because the mean of its divisors is an integer number (15373524).

Almost surely, 2^61368617 is an apocalyptic number.

It is an amenable number.

61368617 is a deficient number, since it is larger than the sum of its proper divisors (125479).

61368617 is a wasteful number, since it uses less digits than its factorization.

61368617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125478.

The product of its digits is 36288, while the sum is 38.

The square root of 61368617 is about 7833.8124179738. The cubic root of 61368617 is about 394.4410552965.

The spelling of 61368617 in words is "sixty-one million, three hundred sixty-eight thousand, six hundred seventeen".