60729866 has 4 divisors (see below), whose sum is σ = 91094802. Its totient is φ = 30364932.

The previous prime is 60729863. The next prime is 60729869. The reversal of 60729866 is 66892706.

60729866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (60729863) and next prime (60729869).

It can be written as a sum of positive squares in only one way, i.e., 57229225 + 3500641 = 7565^2 + 1871^2 .

It is not an unprimeable number, because it can be changed into a prime (60729863) by changing a digit.

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 as a sum of consecutive naturals, namely, 15182465 + ... + 15182468.

Almost surely, 2^60729866 is an apocalyptic number.

60729866 is the 4166-th centered heptagonal number.

60729866 is a deficient number, since it is larger than the sum of its proper divisors (30364936).

60729866 is a wasteful number, since it uses less digits than its factorization.

60729866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30364935.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 60729866 is about 7792.9369303235. The cubic root of 60729866 is about 393.0677755201.

The spelling of 60729866 in words is "sixty million, seven hundred twenty-nine thousand, eight hundred sixty-six".