61439714 has 16 divisors (see below), whose sum is σ = 106370496. Its totient is φ = 26070000.

The previous prime is 61439713. The next prime is 61439731. The reversal of 61439714 is 41793416.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61439713) 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, 20312 + ... + 23139.

It is an arithmetic number, because the mean of its divisors is an integer number (6648156).

Almost surely, 2^61439714 is an apocalyptic number.

61439714 is a deficient number, since it is larger than the sum of its proper divisors (44930782).

61439714 is a wasteful number, since it uses less digits than its factorization.

61439714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43561.

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

The square root of 61439714 is about 7838.3489332895. The cubic root of 61439714 is about 394.5933196205.

The spelling of 61439714 in words is "sixty-one million, four hundred thirty-nine thousand, seven hundred fourteen".