423715615 has 4 divisors (see below), whose sum is σ = 508458744. Its totient is φ = 338972488.

The previous prime is 423715603. The next prime is 423715627. The reversal of 423715615 is 516517324.

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

It is an interprime number because it is at equal distance from previous prime (423715603) and next prime (423715627).

It is a cyclic number.

It is not a de Polignac number, because 423715615 - 2⁵ = 423715583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42371557 + ... + 42371566.

It is an arithmetic number, because the mean of its divisors is an integer number (127114686).

Almost surely, 2^423715615 is an apocalyptic number.

423715615 is a deficient number, since it is larger than the sum of its proper divisors (84743129).

423715615 is an equidigital number, since it uses as much as digits as its factorization.

423715615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84743128.

The product of its digits is 25200, while the sum is 34.

The square root of 423715615 is about 20584.3536454269. The cubic root of 423715615 is about 751.0891523786.

The spelling of 423715615 in words is "four hundred twenty-three million, seven hundred fifteen thousand, six hundred fifteen".