15670423 has 4 divisors (see below), whose sum is σ = 15685168. Its totient is φ = 15655680.

The previous prime is 15670387. The next prime is 15670441. The reversal of 15670423 is 32407651.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15670423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15670391 and 15670400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15670493) 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, 5643 + ... + 7948.

It is an arithmetic number, because the mean of its divisors is an integer number (3921292).

Almost surely, 2^15670423 is an apocalyptic number.

15670423 is a deficient number, since it is larger than the sum of its proper divisors (14745).

15670423 is a wasteful number, since it uses less digits than its factorization.

15670423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14744.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 15670423 is about 3958.5885110731. The cubic root of 15670423 is about 250.2420216265.

The spelling of 15670423 in words is "fifteen million, six hundred seventy thousand, four hundred twenty-three".