16670471 has 4 divisors (see below), whose sum is σ = 16919352. Its totient is φ = 16421592.

The previous prime is 16670413. The next prime is 16670473. The reversal of 16670471 is 17407661.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16670471 - 2¹⁴ = 16654087 is a prime.

It is a super-3 number, since 3×16670471³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16670473) 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, 124340 + ... + 124473.

It is an arithmetic number, because the mean of its divisors is an integer number (4229838).

Almost surely, 2^16670471 is an apocalyptic number.

16670471 is a deficient number, since it is larger than the sum of its proper divisors (248881).

16670471 is an equidigital number, since it uses as much as digits as its factorization.

16670471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248880.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 16670471 is about 4082.9488118271. The cubic root of 16670471 is about 255.4559112961.

The spelling of 16670471 in words is "sixteen million, six hundred seventy thousand, four hundred seventy-one".