9212398723 has 4 divisors (see below), whose sum is σ = 10049889528. Its totient is φ = 8374907920.

The previous prime is 9212398721. The next prime is 9212398759. The reversal of 9212398723 is 3278932129.

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

It is a cyclic number.

It is not a de Polignac number, because 9212398723 - 2¹ = 9212398721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9212398721) 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, 418745386 + ... + 418745407.

It is an arithmetic number, because the mean of its divisors is an integer number (2512472382).

Almost surely, 2^9212398723 is an apocalyptic number.

9212398723 is a deficient number, since it is larger than the sum of its proper divisors (837490805).

9212398723 is a wasteful number, since it uses less digits than its factorization.

9212398723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837490804.

The product of its digits is 326592, while the sum is 46.

The square root of 9212398723 is about 95981.2415162463. The cubic root of 9212398723 is about 2096.3199890559.

The spelling of 9212398723 in words is "nine billion, two hundred twelve million, three hundred ninety-eight thousand, seven hundred twenty-three".