9012723406 has 4 divisors (see below), whose sum is σ = 13519085112. Its totient is φ = 4506361702.

The previous prime is 9012723389. The next prime is 9012723409. The reversal of 9012723406 is 6043272109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6043272109 = 7 ⋅863324587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9012723409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2253180850 + ... + 2253180853.

It is an arithmetic number, because the mean of its divisors is an integer number (3379771278).

Almost surely, 2^9012723406 is an apocalyptic number.

9012723406 is a deficient number, since it is larger than the sum of its proper divisors (4506361706).

9012723406 is a wasteful number, since it uses less digits than its factorization.

9012723406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506361705.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 9012723406 is about 94935.3643591259. The cubic root of 9012723406 is about 2081.0635745013.

The spelling of 9012723406 in words is "nine billion, twelve million, seven hundred twenty-three thousand, four hundred six".