61478744 has 16 divisors (see below), whose sum is σ = 116038320. Its totient is φ = 30535200.

The previous prime is 61478723. The next prime is 61478759. The reversal of 61478744 is 44787416.

61478744 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24239 + ... + 26654.

It is an arithmetic number, because the mean of its divisors is an integer number (7252395).

Almost surely, 2^61478744 is an apocalyptic number.

It is an amenable number.

61478744 is a deficient number, since it is larger than the sum of its proper divisors (54559576).

61478744 is a wasteful number, since it uses less digits than its factorization.

61478744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51050 (or 51046 counting only the distinct ones).

The product of its digits is 150528, while the sum is 41.

The square root of 61478744 is about 7840.8382204966. The cubic root of 61478744 is about 394.6768579718.

The spelling of 61478744 in words is "sixty-one million, four hundred seventy-eight thousand, seven hundred forty-four".