20479703 has 2 divisors, whose sum is σ = 20479704. Its totient is φ = 20479702.

The previous prime is 20479681. The next prime is 20479709. The reversal of 20479703 is 30797402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20479703 - 2¹⁸ = 20217559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20479703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20479709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10239851 + 10239852.

It is an arithmetic number, because the mean of its divisors is an integer number (10239852).

Almost surely, 2^20479703 is an apocalyptic number.

20479703 is a deficient number, since it is larger than the sum of its proper divisors (1).

20479703 is an equidigital number, since it uses as much as digits as its factorization.

20479703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 20479703 is about 4525.4505853009. The cubic root of 20479703 is about 273.5948289024.

The spelling of 20479703 in words is "twenty million, four hundred seventy-nine thousand, seven hundred three".