20073723 has 16 divisors (see below), whose sum is σ = 27560736. Its totient is φ = 12988160.

The previous prime is 20073707. The next prime is 20073731. The reversal of 20073723 is 32737002.

It is a cyclic number.

It is not a de Polignac number, because 20073723 - 2⁴ = 20073707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20073693 and 20073702.

It is not an unprimeable number, because it can be changed into a prime (20073743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35761 + ... + 36317.

It is an arithmetic number, because the mean of its divisors is an integer number (1722546).

Almost surely, 2^20073723 is an apocalyptic number.

20073723 is a deficient number, since it is larger than the sum of its proper divisors (7487013).

20073723 is a wasteful number, since it uses less digits than its factorization.

20073723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 20073723 is about 4480.3708551860. The cubic root of 20073723 is about 271.7748777055.

It can be divided in two parts, 2007372 and 3, that multiplied together give a square (6022116 = 2454²).

The spelling of 20073723 in words is "twenty million, seventy-three thousand, seven hundred twenty-three".