20499067 has 2 divisors, whose sum is σ = 20499068. Its totient is φ = 20499066.

The previous prime is 20499053. The next prime is 20499071. The reversal of 20499067 is 76099402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20499067 - 2²³ = 12110459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20499007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10249533 + 10249534.

It is an arithmetic number, because the mean of its divisors is an integer number (10249534).

Almost surely, 2^20499067 is an apocalyptic number.

20499067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20499067 is an equidigital number, since it uses as much as digits as its factorization.

20499067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 20499067 is about 4527.5895352825. The cubic root of 20499067 is about 273.6810316724.

The spelling of 20499067 in words is "twenty million, four hundred ninety-nine thousand, sixty-seven".