61748743 has 24 divisors (see below), whose sum is σ = 77512032. Its totient is φ = 48018432.

The previous prime is 61748711. The next prime is 61748749. The reversal of 61748743 is 34784716.

It is not a de Polignac number, because 61748743 - 2⁵ = 61748711 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61748696 and 61748705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61748749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99771 + ... + 100387.

It is an arithmetic number, because the mean of its divisors is an integer number (3229668).

Almost surely, 2^61748743 is an apocalyptic number.

61748743 is a deficient number, since it is larger than the sum of its proper divisors (15763289).

61748743 is a wasteful number, since it uses less digits than its factorization.

61748743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699 (or 670 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 61748743 is about 7858.0368413491. The cubic root of 61748743 is about 395.2537876622.

The spelling of 61748743 in words is "sixty-one million, seven hundred forty-eight thousand, seven hundred forty-three".