423379397 has 4 divisors (see below), whose sum is σ = 483862176. Its totient is φ = 362896620.

The previous prime is 423379393. The next prime is 423379399. The reversal of 423379397 is 793973324.

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 423379397 - 2² = 423379393 is a prime.

It is a super-2 number, since 2×423379397² = 358500227608167218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423379391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30241379 + ... + 30241392.

It is an arithmetic number, because the mean of its divisors is an integer number (120965544).

Almost surely, 2^423379397 is an apocalyptic number.

It is an amenable number.

423379397 is a deficient number, since it is larger than the sum of its proper divisors (60482779).

423379397 is an equidigital number, since it uses as much as digits as its factorization.

423379397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60482778.

The product of its digits is 857304, while the sum is 47.

The square root of 423379397 is about 20576.1851906518. The cubic root of 423379397 is about 750.8904369296.

The spelling of 423379397 in words is "four hundred twenty-three million, three hundred seventy-nine thousand, three hundred ninety-seven".