14999997 has 4 divisors (see below), whose sum is σ = 20000000. Its totient is φ = 9999996.

The previous prime is 14999981. The next prime is 15000017. The reversal of 14999997 is 79999941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 14999997 - 2⁴ = 14999981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14999917) 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, 2499997 + ... + 2500002.

It is an arithmetic number, because the mean of its divisors is an integer number (5000000).

Almost surely, 2^14999997 is an apocalyptic number.

It is an amenable number.

14999997 is a deficient number, since it is larger than the sum of its proper divisors (5000003).

14999997 is an equidigital number, since it uses as much as digits as its factorization.

14999997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000002.

The product of its digits is 1653372, while the sum is 57.

The square root of 14999997 is about 3872.9829589091. The cubic root of 14999997 is about 246.6211909916.

The spelling of 14999997 in words is "fourteen million, nine hundred ninety-nine thousand, nine hundred ninety-seven".