61317927 has 12 divisors (see below), whose sum is σ = 96622344. Its totient is φ = 37162320.

The previous prime is 61317923. The next prime is 61317941. The reversal of 61317927 is 72971316.

It is a happy number.

61317927 is a `hidden beast` number, since 613 + 17 + 9 + 27 = 666.

It is not a de Polignac number, because 61317927 - 2² = 61317923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61317891 and 61317900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61317923) 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, 309588 + ... + 309785.

It is an arithmetic number, because the mean of its divisors is an integer number (8051862).

Almost surely, 2^61317927 is an apocalyptic number.

61317927 is a deficient number, since it is larger than the sum of its proper divisors (35304417).

61317927 is a wasteful number, since it uses less digits than its factorization.

61317927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619390 (or 619387 counting only the distinct ones).

The product of its digits is 15876, while the sum is 36.

The square root of 61317927 is about 7830.5764155648. The cubic root of 61317927 is about 394.3324236341.

The spelling of 61317927 in words is "sixty-one million, three hundred seventeen thousand, nine hundred twenty-seven".