16617948 has 12 divisors (see below), whose sum is σ = 38775240. Its totient is φ = 5539312.

The previous prime is 16617941. The next prime is 16617949. The reversal of 16617948 is 84971661.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16617941) 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, 692403 + ... + 692426.

It is an arithmetic number, because the mean of its divisors is an integer number (3231270).

Almost surely, 2^16617948 is an apocalyptic number.

It is an amenable number.

16617948 is an abundant number, since it is smaller than the sum of its proper divisors (22157292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16617948 is a wasteful number, since it uses less digits than its factorization.

16617948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384836 (or 1384834 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The square root of 16617948 is about 4076.5117441263. The cubic root of 16617948 is about 255.1873440657.

The spelling of 16617948 in words is "sixteen million, six hundred seventeen thousand, nine hundred forty-eight".