61748847 has 12 divisors (see below), whose sum is σ = 89461840. Its totient is φ = 41041728.

The previous prime is 61748839. The next prime is 61748857. The reversal of 61748847 is 74884716.

It is not a de Polignac number, because 61748847 - 2³ = 61748839 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 (61748837) 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, 7147 + ... + 13212.

Almost surely, 2^61748847 is an apocalyptic number.

61748847 is a deficient number, since it is larger than the sum of its proper divisors (27712993).

61748847 is a wasteful number, since it uses less digits than its factorization.

61748847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20702 (or 20699 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 61748847 is about 7858.0434587752. The cubic root of 61748847 is about 395.2540095634.

The spelling of 61748847 in words is "sixty-one million, seven hundred forty-eight thousand, eight hundred forty-seven".