16700047 has 32 divisors (see below), whose sum is σ = 21934080. Its totient is φ = 12355200.

The previous prime is 16700029. The next prime is 16700051. The reversal of 16700047 is 74000761.

It is a de Polignac number, because none of the positive numbers 2^k-16700047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16699994 and 16700030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16700947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165297 + ... + 165397.

It is an arithmetic number, because the mean of its divisors is an integer number (685440).

Almost surely, 2^16700047 is an apocalyptic number.

16700047 is a deficient number, since it is larger than the sum of its proper divisors (5234033).

16700047 is a wasteful number, since it uses less digits than its factorization.

16700047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 16700047 is about 4086.5690988897. The cubic root of 16700047 is about 255.6068948386.

The spelling of 16700047 in words is "sixteen million, seven hundred thousand, forty-seven".