60661307 has 16 divisors (see below), whose sum is σ = 70502400. Its totient is φ = 51122400.

The previous prime is 60661303. The next prime is 60661339. The reversal of 60661307 is 70316606.

It is a happy number.

It is not a de Polignac number, because 60661307 - 2² = 60661303 is a prime.

It is a super-4 number, since 4×60661307⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60661307.

It is not an unprimeable number, because it can be changed into a prime (60661303) 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 15 ways as a sum of consecutive naturals, for example, 168794 + ... + 169152.

It is an arithmetic number, because the mean of its divisors is an integer number (4406400).

Almost surely, 2^60661307 is an apocalyptic number.

60661307 is a deficient number, since it is larger than the sum of its proper divisors (9841093).

60661307 is a wasteful number, since it uses less digits than its factorization.

60661307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 60661307 is about 7788.5368972613. The cubic root of 60661307 is about 392.9198061459.

The spelling of 60661307 in words is "sixty million, six hundred sixty-one thousand, three hundred seven".