660583673 has 4 divisors (see below), whose sum is σ = 675946128. Its totient is φ = 645221220.

The previous prime is 660583669. The next prime is 660583691. The reversal of 660583673 is 376385066.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 660583673 - 2² = 660583669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (660580673) 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, 7681163 + ... + 7681248.

It is an arithmetic number, because the mean of its divisors is an integer number (168986532).

Almost surely, 2^660583673 is an apocalyptic number.

It is an amenable number.

660583673 is a deficient number, since it is larger than the sum of its proper divisors (15362455).

660583673 is a wasteful number, since it uses less digits than its factorization.

660583673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15362454.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 660583673 is about 25701.8223672953. The cubic root of 660583673 is about 870.9153500698.

The spelling of 660583673 in words is "six hundred sixty million, five hundred eighty-three thousand, six hundred seventy-three".