61009726 has 8 divisors (see below), whose sum is σ = 91582920. Its totient is φ = 30482088.

The previous prime is 61009693. The next prime is 61009727. The reversal of 61009726 is 62790016.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61009727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7816 + ... + 13531.

It is an arithmetic number, because the mean of its divisors is an integer number (11447865).

Almost surely, 2^61009726 is an apocalyptic number.

61009726 is a deficient number, since it is larger than the sum of its proper divisors (30573194).

61009726 is a wasteful number, since it uses less digits than its factorization.

61009726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22778.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 61009726 is about 7810.8722944368. The cubic root of 61009726 is about 393.6706387129.

The spelling of 61009726 in words is "sixty-one million, nine thousand, seven hundred twenty-six".