61220758 has 16 divisors (see below), whose sum is σ = 92887200. Its totient is φ = 30260736.

The previous prime is 61220729. The next prime is 61220771. The reversal of 61220758 is 85702216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76416 + ... + 77212.

It is an arithmetic number, because the mean of its divisors is an integer number (5805450).

Almost surely, 2^61220758 is an apocalyptic number.

61220758 is a deficient number, since it is larger than the sum of its proper divisors (31666442).

61220758 is a wasteful number, since it uses less digits than its factorization.

61220758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 61220758 is about 7824.3694953651. The cubic root of 61220758 is about 394.1240172353.

The spelling of 61220758 in words is "sixty-one million, two hundred twenty thousand, seven hundred fifty-eight".