423698447 has 2 divisors, whose sum is σ = 423698448. Its totient is φ = 423698446.

The previous prime is 423698441. The next prime is 423698491. The reversal of 423698447 is 744896324.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423698447 - 2⁶ = 423698383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423698441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211849223 + 211849224.

It is an arithmetic number, because the mean of its divisors is an integer number (211849224).

Almost surely, 2^423698447 is an apocalyptic number.

423698447 is a deficient number, since it is larger than the sum of its proper divisors (1).

423698447 is an equidigital number, since it uses as much as digits as its factorization.

423698447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 47.

The square root of 423698447 is about 20583.9366254368. The cubic root of 423698447 is about 751.0790080961.

The spelling of 423698447 in words is "four hundred twenty-three million, six hundred ninety-eight thousand, four hundred forty-seven".