16667461 has 4 divisors (see below), whose sum is σ = 16676352. Its totient is φ = 16658572.

The previous prime is 16667449. The next prime is 16667471. The reversal of 16667461 is 16476661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16667461 - 2⁷ = 16667333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16667461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16667411) 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, 415 + ... + 5788.

It is an arithmetic number, because the mean of its divisors is an integer number (4169088).

Almost surely, 2^16667461 is an apocalyptic number.

It is an amenable number.

16667461 is a deficient number, since it is larger than the sum of its proper divisors (8891).

16667461 is an equidigital number, since it uses as much as digits as its factorization.

16667461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8890.

The product of its digits is 36288, while the sum is 37.

The square root of 16667461 is about 4082.5801890471. The cubic root of 16667461 is about 255.4405354342.

The spelling of 16667461 in words is "sixteen million, six hundred sixty-seven thousand, four hundred sixty-one".