61072734 has 8 divisors (see below), whose sum is σ = 122145480. Its totient is φ = 20357576.

The previous prime is 61072733. The next prime is 61072741. The reversal of 61072734 is 43727016.

It is a sphenic number, since it is the product of 3 distinct primes.

61072734 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61072733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5089389 + ... + 5089400.

It is an arithmetic number, because the mean of its divisors is an integer number (15268185).

Almost surely, 2^61072734 is an apocalyptic number.

61072734 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61072734 is a wasteful number, since it uses less digits than its factorization.

61072734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10178794.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 61072734 is about 7814.9046059437. The cubic root of 61072734 is about 393.8061136455.

The spelling of 61072734 in words is "sixty-one million, seventy-two thousand, seven hundred thirty-four".