61089894 has 12 divisors (see below), whose sum is σ = 132361476. Its totient is φ = 20363292.

The previous prime is 61089893. The next prime is 61089901. The reversal of 61089894 is 49898016.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61089893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1696924 + ... + 1696959.

It is an arithmetic number, because the mean of its divisors is an integer number (11030123).

Almost surely, 2^61089894 is an apocalyptic number.

61089894 is an abundant number, since it is smaller than the sum of its proper divisors (71271582).

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

61089894 is a wasteful number, since it uses less digits than its factorization.

61089894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393891 (or 3393888 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 61089894 is about 7816.0024309106. The cubic root of 61089894 is about 393.8429936062.

The spelling of 61089894 in words is "sixty-one million, eighty-nine thousand, eight hundred ninety-four".