423866739 has 16 divisors (see below), whose sum is σ = 571737600. Its totient is φ = 279305376.

The previous prime is 423866719. The next prime is 423866743. The reversal of 423866739 is 937668324.

It is not a de Polignac number, because 423866739 - 2²⁴ = 407089523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423866719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97537 + ... + 101789.

It is an arithmetic number, because the mean of its divisors is an integer number (35733600).

Almost surely, 2^423866739 is an apocalyptic number.

423866739 is a deficient number, since it is larger than the sum of its proper divisors (147870861).

423866739 is a wasteful number, since it uses less digits than its factorization.

423866739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634.

The product of its digits is 1306368, while the sum is 48.

The square root of 423866739 is about 20588.0241645477. The cubic root of 423866739 is about 751.1784371890.

The spelling of 423866739 in words is "four hundred twenty-three million, eight hundred sixty-six thousand, seven hundred thirty-nine".