61493369 has 32 divisors (see below), whose sum is σ = 78174720. Its totient is φ = 47158272.

The previous prime is 61493359. The next prime is 61493389. The reversal of 61493369 is 96339416.

61493369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61493369 - 2²⁰ = 60444793 is a prime.

It is a super-2 number, since 2×61493369² = 7562868861940322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (61493309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 355367 + ... + 355539.

It is an arithmetic number, because the mean of its divisors is an integer number (2442960).

Almost surely, 2^61493369 is an apocalyptic number.

It is an amenable number.

61493369 is a deficient number, since it is larger than the sum of its proper divisors (16681351).

61493369 is a wasteful number, since it uses less digits than its factorization.

61493369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329.

The product of its digits is 104976, while the sum is 41.

The square root of 61493369 is about 7841.7707821639. The cubic root of 61493369 is about 394.7081516679.

The spelling of 61493369 in words is "sixty-one million, four hundred ninety-three thousand, three hundred sixty-nine".