61847742 has 32 divisors (see below), whose sum is σ = 135792000. Its totient is φ = 18623520.

The previous prime is 61847719. The next prime is 61847761. The reversal of 61847742 is 24774816.

It is a self number, because there is not a number n which added to its sum of digits gives 61847742.

It is a congruent number.

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, 7884 + ... + 13632.

It is an arithmetic number, because the mean of its divisors is an integer number (4243500).

Almost surely, 2^61847742 is an apocalyptic number.

61847742 is an abundant number, since it is smaller than the sum of its proper divisors (73944258).

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

61847742 is a wasteful number, since it uses less digits than its factorization.

61847742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928.

The product of its digits is 75264, while the sum is 39.

The square root of 61847742 is about 7864.3335381964. Note that the first 3 decimals coincide. The cubic root of 61847742 is about 395.4649057880.

The spelling of 61847742 in words is "sixty-one million, eight hundred forty-seven thousand, seven hundred forty-two".