16969974 has 48 divisors (see below), whose sum is σ = 39817008. Its totient is φ = 4807488.

The previous prime is 16969963. The next prime is 16969991. The reversal of 16969974 is 47996961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57772 + ... + 58064.

It is an arithmetic number, because the mean of its divisors is an integer number (829521).

Almost surely, 2^16969974 is an apocalyptic number.

16969974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16969974, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19908504).

16969974 is an abundant number, since it is smaller than the sum of its proper divisors (22847034).

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

16969974 is a wasteful number, since it uses less digits than its factorization.

16969974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509 (or 502 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 16969974 is about 4119.4628290591. The cubic root of 16969974 is about 256.9766869091.

The spelling of 16969974 in words is "sixteen million, nine hundred sixty-nine thousand, nine hundred seventy-four".