61726406 has 16 divisors (see below), whose sum is σ = 107308800. Its totient is φ = 26081160.

The previous prime is 61726393. The next prime is 61726409. The reversal of 61726406 is 60462716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61726409) 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 7 ways as a sum of consecutive naturals, for example, 30056 + ... + 32043.

It is an arithmetic number, because the mean of its divisors is an integer number (6706800).

Almost surely, 2^61726406 is an apocalyptic number.

61726406 is a deficient number, since it is larger than the sum of its proper divisors (45582394).

61726406 is a wasteful number, since it uses less digits than its factorization.

61726406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62179.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 61726406 is about 7856.6154290509. The cubic root of 61726406 is about 395.2061221918.

The spelling of 61726406 in words is "sixty-one million, seven hundred twenty-six thousand, four hundred six".