14273721 has 48 divisors (see below), whose sum is σ = 26357760. Its totient is φ = 7227360.

The previous prime is 14273719. The next prime is 14273723. The reversal of 14273721 is 12737241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (14273719) and next prime (14273723).

It is not a de Polignac number, because 14273721 - 2¹ = 14273719 is a prime.

It is a super-2 number, since 2×14273721² = 407478222371682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14273723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29560 + ... + 30038.

It is an arithmetic number, because the mean of its divisors is an integer number (549120).

Almost surely, 2^14273721 is an apocalyptic number.

14273721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14273721 is a deficient number, since it is larger than the sum of its proper divisors (12084039).

14273721 is a wasteful number, since it uses less digits than its factorization.

14273721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 543 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 14273721 is about 3778.0578343906. The cubic root of 14273721 is about 242.5748293534.

The spelling of 14273721 in words is "fourteen million, two hundred seventy-three thousand, seven hundred twenty-one".