423207403 has 4 divisors (see below), whose sum is σ = 423248760. Its totient is φ = 423166048.

The previous prime is 423207397. The next prime is 423207409. The reversal of 423207403 is 304702324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (423207397) and next prime (423207409).

It is a cyclic number.

It is not a de Polignac number, because 423207403 - 2¹³ = 423199211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423207409) 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, 7203 + ... + 29971.

It is an arithmetic number, because the mean of its divisors is an integer number (105812190).

Almost surely, 2^423207403 is an apocalyptic number.

423207403 is a deficient number, since it is larger than the sum of its proper divisors (41357).

423207403 is a wasteful number, since it uses less digits than its factorization.

423207403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41356.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 423207403 is about 20572.0053227681. The cubic root of 423207403 is about 750.7887423713.

Adding to 423207403 its reverse (304702324), we get a palindrome (727909727).

The spelling of 423207403 in words is "four hundred twenty-three million, two hundred seven thousand, four hundred three".