61748943 has 8 divisors (see below), whose sum is σ = 82924800. Its totient is φ = 40869528.

The previous prime is 61748941. The next prime is 61748957. The reversal of 61748943 is 34984716.

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

It is not a de Polignac number, because 61748943 - 2¹ = 61748941 is a prime.

It is a super-3 number, since 3×61748943³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61748895 and 61748904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61748941) 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 7 ways as a sum of consecutive naturals, for example, 73623 + ... + 74456.

It is an arithmetic number, because the mean of its divisors is an integer number (10365600).

Almost surely, 2^61748943 is an apocalyptic number.

61748943 is a deficient number, since it is larger than the sum of its proper divisors (21175857).

61748943 is a wasteful number, since it uses less digits than its factorization.

61748943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148221.

The product of its digits is 145152, while the sum is 42.

The square root of 61748943 is about 7858.0495671636. The cubic root of 61748943 is about 395.2542143951.

The spelling of 61748943 in words is "sixty-one million, seven hundred forty-eight thousand, nine hundred forty-three".