61338717 has 12 divisors (see below), whose sum is σ = 96655104. Its totient is φ = 37174920.

The previous prime is 61338709. The next prime is 61338721. The reversal of 61338717 is 71783316.

61338717 is a `hidden beast` number, since 613 + 38 + 7 + 1 + 7 = 666.

It is not a de Polignac number, because 61338717 - 2³ = 61338709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61338727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309693 + ... + 309890.

It is an arithmetic number, because the mean of its divisors is an integer number (8054592).

Almost surely, 2^61338717 is an apocalyptic number.

It is an amenable number.

61338717 is a deficient number, since it is larger than the sum of its proper divisors (35316387).

61338717 is a wasteful number, since it uses less digits than its factorization.

61338717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619600 (or 619597 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 61338717 is about 7831.9037915439. The cubic root of 61338717 is about 394.3769850706.

The spelling of 61338717 in words is "sixty-one million, three hundred thirty-eight thousand, seven hundred seventeen".