660797039 has 8 divisors (see below), whose sum is σ = 772759680. Its totient is φ = 553225176.

The previous prime is 660796979. The next prime is 660797051. The reversal of 660797039 is 930797066.

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

It is not a de Polignac number, because 660797039 - 2²⁸ = 392361583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 660796984 and 660797002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660797069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097369 + ... + 1097970.

It is an arithmetic number, because the mean of its divisors is an integer number (96594960).

Almost surely, 2^660797039 is an apocalyptic number.

660797039 is a deficient number, since it is larger than the sum of its proper divisors (111962641).

660797039 is a wasteful number, since it uses less digits than its factorization.

660797039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195389.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 660797039 is about 25705.9728273411. The cubic root of 660797039 is about 871.0091074185.

The spelling of 660797039 in words is "six hundred sixty million, seven hundred ninety-seven thousand, thirty-nine".