20493713 has 8 divisors (see below), whose sum is σ = 21498048. Its totient is φ = 19498864.

The previous prime is 20493679. The next prime is 20493719. The reversal of 20493713 is 31739402.

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

It is a cyclic number.

It is not a de Polignac number, because 20493713 - 2¹² = 20489617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20493719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2270 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (2687256).

Almost surely, 2^20493713 is an apocalyptic number.

20493713 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20493713 is a deficient number, since it is larger than the sum of its proper divisors (1004335).

20493713 is a wasteful number, since it uses less digits than its factorization.

20493713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 20493713 is about 4526.9982328249. The cubic root of 20493713 is about 273.6572026882.

The spelling of 20493713 in words is "twenty million, four hundred ninety-three thousand, seven hundred thirteen".