1673208713 has 4 divisors (see below), whose sum is σ = 1825318608. Its totient is φ = 1521098820.

The previous prime is 1673208701. The next prime is 1673208721. The reversal of 1673208713 is 3178023761.

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 a de Polignac number, because none of the positive numbers 2^k-1673208713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1673208773) 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, 76054931 + ... + 76054952.

It is an arithmetic number, because the mean of its divisors is an integer number (456329652).

Almost surely, 2^1673208713 is an apocalyptic number.

It is an amenable number.

1673208713 is a deficient number, since it is larger than the sum of its proper divisors (152109895).

1673208713 is a wasteful number, since it uses less digits than its factorization.

1673208713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152109894.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1673208713 is about 40904.8739516454. The cubic root of 1673208713 is about 1187.1803669082.

The spelling of 1673208713 in words is "one billion, six hundred seventy-three million, two hundred eight thousand, seven hundred thirteen".