1973713 has 4 divisors (see below), whose sum is σ = 2255680. Its totient is φ = 1691748.

The previous prime is 1973689. The next prime is 1973723. The reversal of 1973713 is 3173791.

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 1973713 - 2¹³ = 1965521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1973723) 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, 140973 + ... + 140986.

It is an arithmetic number, because the mean of its divisors is an integer number (563920).

2^1973713 is an apocalyptic number.

It is an amenable number.

1973713 is a deficient number, since it is larger than the sum of its proper divisors (281967).

1973713 is an equidigital number, since it uses as much as digits as its factorization.

1973713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281966.

The product of its digits is 3969, while the sum is 31.

The square root of 1973713 is about 1404.8889635840. Note that the first 3 decimals coincide. The cubic root of 1973713 is about 125.4376763930.

The spelling of 1973713 in words is "one million, nine hundred seventy-three thousand, seven hundred thirteen".