61798567 has 8 divisors (see below), whose sum is σ = 62570880. Its totient is φ = 61029600.

The previous prime is 61798549. The next prime is 61798571. The reversal of 61798567 is 76589716.

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 61798567 - 2¹¹ = 61796519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61798567.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61798367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71178 + ... + 72040.

It is an arithmetic number, because the mean of its divisors is an integer number (7821360).

Almost surely, 2^61798567 is an apocalyptic number.

61798567 is a deficient number, since it is larger than the sum of its proper divisors (772313).

61798567 is a wasteful number, since it uses less digits than its factorization.

61798567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673.

The product of its digits is 635040, while the sum is 49.

The square root of 61798567 is about 7861.2064595709. The cubic root of 61798567 is about 395.3600669128.

The spelling of 61798567 in words is "sixty-one million, seven hundred ninety-eight thousand, five hundred sixty-seven".