423497769 has 4 divisors (see below), whose sum is σ = 564663696. Its totient is φ = 282331844.

The previous prime is 423497743. The next prime is 423497773. The reversal of 423497769 is 967794324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 423497769 - 2⁸ = 423497513 is a prime.

It is a super-2 number, since 2×423497769² = 358700720695954722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (423497779) 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, 70582959 + ... + 70582964.

It is an arithmetic number, because the mean of its divisors is an integer number (141165924).

Almost surely, 2^423497769 is an apocalyptic number.

It is an amenable number.

423497769 is a deficient number, since it is larger than the sum of its proper divisors (141165927).

423497769 is a wasteful number, since it uses less digits than its factorization.

423497769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141165926.

The product of its digits is 2286144, while the sum is 51.

The square root of 423497769 is about 20579.0614217461. The cubic root of 423497769 is about 750.9604105128.

The spelling of 423497769 in words is "four hundred twenty-three million, four hundred ninety-seven thousand, seven hundred sixty-nine".