423570797 has 4 divisors (see below), whose sum is σ = 456153180. Its totient is φ = 390988416.

The previous prime is 423570757. The next prime is 423570803. The reversal of 423570797 is 797075324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 280194121 + 143376676 = 16739^2 + 11974^2 .

It is not a de Polignac number, because 423570797 - 2²⁴ = 406793581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423570727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16291172 + ... + 16291197.

It is an arithmetic number, because the mean of its divisors is an integer number (114038295).

Almost surely, 2^423570797 is an apocalyptic number.

It is an amenable number.

423570797 is a deficient number, since it is larger than the sum of its proper divisors (32582383).

423570797 is a wasteful number, since it uses less digits than its factorization.

423570797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32582382.

The product of its (nonzero) digits is 370440, while the sum is 44.

The square root of 423570797 is about 20580.8356730236. The cubic root of 423570797 is about 751.0035732627.

The spelling of 423570797 in words is "four hundred twenty-three million, five hundred seventy thousand, seven hundred ninety-seven".