423508531 has 8 divisors (see below), whose sum is σ = 432597024. Its totient is φ = 414460800.

The previous prime is 423508507. The next prime is 423508559. The reversal of 423508531 is 135805324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423508531 - 2¹³ = 423500339 is a prime.

It is a super-2 number, since 2×423508531² = 358718951659555922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423508493 and 423508502.

It is not an unprimeable number, because it can be changed into a prime (423508571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11290 + ... + 31216.

It is an arithmetic number, because the mean of its divisors is an integer number (54074628).

Almost surely, 2^423508531 is an apocalyptic number.

423508531 is a deficient number, since it is larger than the sum of its proper divisors (9088493).

423508531 is a wasteful number, since it uses less digits than its factorization.

423508531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20381.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 423508531 is about 20579.3228994542. The cubic root of 423508531 is about 750.9667716384.

The spelling of 423508531 in words is "four hundred twenty-three million, five hundred eight thousand, five hundred thirty-one".