61634634 has 16 divisors (see below), whose sum is σ = 127246080. Its totient is φ = 19882080.

The previous prime is 61634633. The next prime is 61634669. The reversal of 61634634 is 43643616.

61634634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61634595 and 61634604.

It is not an unprimeable number, because it can be changed into a prime (61634633) 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 7 ways as a sum of consecutive naturals, for example, 165499 + ... + 165870.

It is an arithmetic number, because the mean of its divisors is an integer number (7952880).

Almost surely, 2^61634634 is an apocalyptic number.

61634634 is an abundant number, since it is smaller than the sum of its proper divisors (65611446).

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

61634634 is a wasteful number, since it uses less digits than its factorization.

61634634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331405.

The product of its digits is 31104, while the sum is 33.

The square root of 61634634 is about 7850.7728281998. The cubic root of 61634634 is about 395.0101669124.

The spelling of 61634634 in words is "sixty-one million, six hundred thirty-four thousand, six hundred thirty-four".