61739842 has 8 divisors (see below), whose sum is σ = 94179600. Its totient is φ = 30346644.

The previous prime is 61739837. The next prime is 61739851. The reversal of 61739842 is 24893716.

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

It is a junction number, because it is equal to n+sod(n) for n = 61739795 and 61739804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261492 + ... + 261727.

It is an arithmetic number, because the mean of its divisors is an integer number (11772450).

Almost surely, 2^61739842 is an apocalyptic number.

61739842 is a deficient number, since it is larger than the sum of its proper divisors (32439758).

61739842 is a wasteful number, since it uses less digits than its factorization.

61739842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523280.

The product of its digits is 72576, while the sum is 40.

The square root of 61739842 is about 7857.4704581055. The cubic root of 61739842 is about 395.2347949785.

The spelling of 61739842 in words is "sixty-one million, seven hundred thirty-nine thousand, eight hundred forty-two".