61630734 has 32 divisors (see below), whose sum is σ = 135198720. Its totient is φ = 18574400.

The previous prime is 61630717. The next prime is 61630741. The reversal of 61630734 is 43703616.

61630734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10162 + ... + 15050.

It is an arithmetic number, because the mean of its divisors is an integer number (4224960).

Almost surely, 2^61630734 is an apocalyptic number.

61630734 is an abundant number, since it is smaller than the sum of its proper divisors (73567986).

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

61630734 is a wasteful number, since it uses less digits than its factorization.

61630734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5096.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 61630734 is about 7850.5244410804. The cubic root of 61630734 is about 395.0018351675.

The spelling of 61630734 in words is "sixty-one million, six hundred thirty thousand, seven hundred thirty-four".