61486893 has 12 divisors (see below), whose sum is σ = 95646460. Its totient is φ = 37838016.

The previous prime is 61486871. The next prime is 61486903. The reversal of 61486893 is 39868416.

It can be written as a sum of positive squares in 2 ways, for example, as 15069924 + 46416969 = 3882^2 + 6813^2 .

It is not a de Polignac number, because 61486893 - 2⁶ = 61486829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61486823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 262648 + ... + 262881.

Almost surely, 2^61486893 is an apocalyptic number.

It is an amenable number.

61486893 is a deficient number, since it is larger than the sum of its proper divisors (34159567).

61486893 is a wasteful number, since it uses less digits than its factorization.

61486893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525548 (or 525545 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 61486893 is about 7841.3578543515. The cubic root of 61486893 is about 394.6942953244.

It can be divided in two parts, 6148 and 6893, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 61486893 in words is "sixty-one million, four hundred eighty-six thousand, eight hundred ninety-three".