61798071 has 8 divisors (see below), whose sum is σ = 83026944. Its totient is φ = 40883960.

The previous prime is 61798039. The next prime is 61798123. The reversal of 61798071 is 17089716.

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

It is a cyclic number.

It is not a de Polignac number, because 61798071 - 2⁵ = 61798039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61798001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78231 + ... + 79016.

It is an arithmetic number, because the mean of its divisors is an integer number (10378368).

Almost surely, 2^61798071 is an apocalyptic number.

61798071 is a deficient number, since it is larger than the sum of its proper divisors (21228873).

61798071 is a wasteful number, since it uses less digits than its factorization.

61798071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157381.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 61798071 is about 7861.1749121871. The cubic root of 61798071 is about 395.3590091800.

The spelling of 61798071 in words is "sixty-one million, seven hundred ninety-eight thousand, seventy-one".