423197751 has 4 divisors (see below), whose sum is σ = 564263672. Its totient is φ = 282131832.

The previous prime is 423197743. The next prime is 423197821. The reversal of 423197751 is 157791324.

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

It is not a de Polignac number, because 423197751 - 2³ = 423197743 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 (423197251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70532956 + ... + 70532961.

It is an arithmetic number, because the mean of its divisors is an integer number (141065918).

Almost surely, 2^423197751 is an apocalyptic number.

423197751 is a deficient number, since it is larger than the sum of its proper divisors (141065921).

423197751 is a wasteful number, since it uses less digits than its factorization.

423197751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141065920.

The product of its digits is 52920, while the sum is 39.

The square root of 423197751 is about 20571.7707307854. The cubic root of 423197751 is about 750.7830346356.

The spelling of 423197751 in words is "four hundred twenty-three million, one hundred ninety-seven thousand, seven hundred fifty-one".