61748456 has 64 divisors (see below), whose sum is σ = 146880000. Its totient is φ = 23636160.

The previous prime is 61748443. The next prime is 61748507. The reversal of 61748456 is 65484716.

It is a super-3 number, since 3×61748456³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35495 + ... + 37193.

It is an arithmetic number, because the mean of its divisors is an integer number (2295000).

Almost surely, 2^61748456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61748456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73440000).

61748456 is an abundant number, since it is smaller than the sum of its proper divisors (85131544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61748456 is a wasteful number, since it uses less digits than its factorization.

61748456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782 (or 1778 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 61748456 is about 7858.0185797693. The cubic root of 61748456 is about 395.2531752987.

The spelling of 61748456 in words is "sixty-one million, seven hundred forty-eight thousand, four hundred fifty-six".