16948657 has 4 divisors (see below), whose sum is σ = 18489456. Its totient is φ = 15407860.

The previous prime is 16948619. The next prime is 16948691. The reversal of 16948657 is 75684961.

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 a cyclic number.

It is not a de Polignac number, because 16948657 - 2¹⁵ = 16915889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16948697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770383 + ... + 770404.

It is an arithmetic number, because the mean of its divisors is an integer number (4622364).

Almost surely, 2^16948657 is an apocalyptic number.

It is an amenable number.

16948657 is a deficient number, since it is larger than the sum of its proper divisors (1540799).

16948657 is a wasteful number, since it uses less digits than its factorization.

16948657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540798.

The product of its digits is 362880, while the sum is 46.

The square root of 16948657 is about 4116.8746641111. The cubic root of 16948657 is about 256.8690405573.

The spelling of 16948657 in words is "sixteen million, nine hundred forty-eight thousand, six hundred fifty-seven".