13749723 has 32 divisors (see below), whose sum is σ = 22471680. Its totient is φ = 8255520.

The previous prime is 13749691. The next prime is 13749733. The reversal of 13749723 is 32794731.

It is not a de Polignac number, because 13749723 - 2⁵ = 13749691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13749733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14638 + ... + 15548.

It is an arithmetic number, because the mean of its divisors is an integer number (702240).

Almost surely, 2^13749723 is an apocalyptic number.

13749723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13749723 is a deficient number, since it is larger than the sum of its proper divisors (8721957).

13749723 is a wasteful number, since it uses less digits than its factorization.

13749723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 970 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 13749723 is about 3708.0618926873. The cubic root of 13749723 is about 239.5693840868.

The spelling of 13749723 in words is "thirteen million, seven hundred forty-nine thousand, seven hundred twenty-three".