13948657 has 2 divisors, whose sum is σ = 13948658. Its totient is φ = 13948656.

The previous prime is 13948643. The next prime is 13948691. The reversal of 13948657 is 75684931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8014561 + 5934096 = 2831^2 + 2436^2 .

It is a cyclic number.

It is not a de Polignac number, because 13948657 - 2¹¹ = 13946609 is a prime.

It is not a weakly prime, because it can be changed into another prime (13948637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6974328 + 6974329.

It is an arithmetic number, because the mean of its divisors is an integer number (6974329).

Almost surely, 2^13948657 is an apocalyptic number.

It is an amenable number.

13948657 is a deficient number, since it is larger than the sum of its proper divisors (1).

13948657 is an equidigital number, since it uses as much as digits as its factorization.

13948657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 13948657 is about 3734.7900878095. The cubic root of 13948657 is about 240.7192370978.

The spelling of 13948657 in words is "thirteen million, nine hundred forty-eight thousand, six hundred fifty-seven".