16870516 has 36 divisors (see below), whose sum is σ = 32757676. Its totient is φ = 7557120.

The previous prime is 16870493. The next prime is 16870517. The reversal of 16870516 is 61507861.

It can be written as a sum of positive squares in 6 ways, for example, as 10265616 + 6604900 = 3204^2 + 2570^2 .

It is a super-2 number, since 2×16870516² = 569228620212512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16870517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87316 + ... + 87508.

Almost surely, 2^16870516 is an apocalyptic number.

It is an amenable number.

16870516 is a deficient number, since it is larger than the sum of its proper divisors (15887160).

16870516 is a wasteful number, since it uses less digits than its factorization.

16870516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 16870516 is about 4107.3733699288. The cubic root of 16870516 is about 256.4736713752.

The spelling of 16870516 in words is "sixteen million, eight hundred seventy thousand, five hundred sixteen".