16878872 has 16 divisors (see below), whose sum is σ = 33024240. Its totient is φ = 8072416.

The previous prime is 16878863. The next prime is 16878881. The reversal of 16878872 is 27887861.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16878863) and next prime (16878881).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45683 + ... + 46050.

It is an arithmetic number, because the mean of its divisors is an integer number (2064015).

Almost surely, 2^16878872 is an apocalyptic number.

It is an amenable number.

16878872 is a deficient number, since it is larger than the sum of its proper divisors (16145368).

16878872 is a wasteful number, since it uses less digits than its factorization.

16878872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91762 (or 91758 counting only the distinct ones).

The product of its digits is 301056, while the sum is 47.

The square root of 16878872 is about 4108.3904390893. The cubic root of 16878872 is about 256.5160083586.

The spelling of 16878872 in words is "sixteen million, eight hundred seventy-eight thousand, eight hundred seventy-two".