61220746 has 8 divisors (see below), whose sum is σ = 92740644. Its totient is φ = 30307200.

The previous prime is 61220729. The next prime is 61220771. The reversal of 61220746 is 64702216.

61220746 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 58293225 + 2927521 = 7635^2 + 1711^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 151335 + ... + 151738.

Almost surely, 2^61220746 is an apocalyptic number.

61220746 is a deficient number, since it is larger than the sum of its proper divisors (31519898).

61220746 is a wasteful number, since it uses less digits than its factorization.

61220746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303176.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 61220746 is about 7824.3687285301. The cubic root of 61220746 is about 394.1239914843.

The spelling of 61220746 in words is "sixty-one million, two hundred twenty thousand, seven hundred forty-six".