20273699 has 2 divisors, whose sum is σ = 20273700. Its totient is φ = 20273698.

The previous prime is 20273681. The next prime is 20273711. The reversal of 20273699 is 99637202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20273699 - 2¹² = 20269603 is a prime.

It is a super-2 number, since 2×20273699² = 822045742285202, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20272699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10136849 + 10136850.

It is an arithmetic number, because the mean of its divisors is an integer number (10136850).

Almost surely, 2^20273699 is an apocalyptic number.

20273699 is a deficient number, since it is larger than the sum of its proper divisors (1).

20273699 is an equidigital number, since it uses as much as digits as its factorization.

20273699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 20273699 is about 4502.6324522439. The cubic root of 20273699 is about 272.6743781898.

The spelling of 20273699 in words is "twenty million, two hundred seventy-three thousand, six hundred ninety-nine".