423579253 has 2 divisors, whose sum is σ = 423579254. Its totient is φ = 423579252.

The previous prime is 423579227. The next prime is 423579263. The reversal of 423579253 is 352975324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395890609 + 27688644 = 19897^2 + 5262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423579253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423579263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211789626 + 211789627.

It is an arithmetic number, because the mean of its divisors is an integer number (211789627).

Almost surely, 2^423579253 is an apocalyptic number.

It is an amenable number.

423579253 is a deficient number, since it is larger than the sum of its proper divisors (1).

423579253 is an equidigital number, since it uses as much as digits as its factorization.

423579253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 40.

The square root of 423579253 is about 20581.0411058333. The cubic root of 423579253 is about 751.0085708090.

The spelling of 423579253 in words is "four hundred twenty-three million, five hundred seventy-nine thousand, two hundred fifty-three".