61721462 has 32 divisors (see below), whose sum is σ = 107136000. Its totient is φ = 26373600.

The previous prime is 61721453. The next prime is 61721497. The reversal of 61721462 is 26412716.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61787 + ... + 62777.

It is an arithmetic number, because the mean of its divisors is an integer number (3348000).

Almost surely, 2^61721462 is an apocalyptic number.

61721462 is a deficient number, since it is larger than the sum of its proper divisors (45414538).

61721462 is a wasteful number, since it uses less digits than its factorization.

61721462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172.

The product of its digits is 4032, while the sum is 29.

The square root of 61721462 is about 7856.3007834476. The cubic root of 61721462 is about 395.1955705151.

The spelling of 61721462 in words is "sixty-one million, seven hundred twenty-one thousand, four hundred sixty-two".