61089607 has 4 divisors (see below), whose sum is σ = 61950096. Its totient is φ = 60229120.

The previous prime is 61089601. The next prime is 61089647. The reversal of 61089607 is 70698016.

61089607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61089607 - 2³ = 61089599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61089601) 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 3 ways as a sum of consecutive naturals, for example, 430138 + ... + 430279.

It is an arithmetic number, because the mean of its divisors is an integer number (15487524).

Almost surely, 2^61089607 is an apocalyptic number.

61089607 is a deficient number, since it is larger than the sum of its proper divisors (860489).

61089607 is an equidigital number, since it uses as much as digits as its factorization.

61089607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860488.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 61089607 is about 7815.9840711199. The cubic root of 61089607 is about 393.8423768478.

The spelling of 61089607 in words is "sixty-one million, eighty-nine thousand, six hundred seven".