60664739 has 4 divisors (see below), whose sum is σ = 63857640. Its totient is φ = 57471840.

The previous prime is 60664727. The next prime is 60664759. The reversal of 60664739 is 93746606.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 60664739 - 2¹² = 60660643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60664696 and 60664705.

It is not an unprimeable number, because it can be changed into a prime (60664759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1596422 + ... + 1596459.

It is an arithmetic number, because the mean of its divisors is an integer number (15964410).

Almost surely, 2^60664739 is an apocalyptic number.

60664739 is a deficient number, since it is larger than the sum of its proper divisors (3192901).

60664739 is a wasteful number, since it uses less digits than its factorization.

60664739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192900.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 60664739 is about 7788.7572179392. The cubic root of 60664739 is about 392.9272160058.

The spelling of 60664739 in words is "sixty million, six hundred sixty-four thousand, seven hundred thirty-nine".