61247317 has 8 divisors (see below), whose sum is σ = 66044160. Its totient is φ = 56607840.

The previous prime is 61247299. The next prime is 61247359. The reversal of 61247317 is 71374216.

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

It is not a de Polignac number, because 61247317 - 2²³ = 52858709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61247377) 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, 38533 + ... + 40090.

It is an arithmetic number, because the mean of its divisors is an integer number (8255520).

Almost surely, 2^61247317 is an apocalyptic number.

It is an amenable number.

61247317 is a deficient number, since it is larger than the sum of its proper divisors (4796843).

61247317 is a wasteful number, since it uses less digits than its factorization.

61247317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78683.

The product of its digits is 7056, while the sum is 31.

The square root of 61247317 is about 7826.0665087897. The cubic root of 61247317 is about 394.1810024082.

The spelling of 61247317 in words is "sixty-one million, two hundred forty-seven thousand, three hundred seventeen".