61913744 has 40 divisors (see below), whose sum is σ = 122432640. Its totient is φ = 30326400.

The previous prime is 61913743. The next prime is 61913777. The reversal of 61913744 is 44731916.

It is not an unprimeable number, because it can be changed into a prime (61913741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228329 + ... + 228599.

It is an arithmetic number, because the mean of its divisors is an integer number (3060816).

Almost surely, 2^61913744 is an apocalyptic number.

It is an amenable number.

61913744 is a deficient number, since it is larger than the sum of its proper divisors (60518896).

61913744 is a wasteful number, since it uses less digits than its factorization.

61913744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519 (or 513 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 61913744 is about 7868.5287061814. The cubic root of 61913744 is about 395.6055317536.

The spelling of 61913744 in words is "sixty-one million, nine hundred thirteen thousand, seven hundred forty-four".