169000447 has 8 divisors (see below), whose sum is σ = 210701952. Its totient is φ = 131688600.

The previous prime is 169000399. The next prime is 169000463. The reversal of 169000447 is 744000961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 169000447 - 2¹⁹ = 168476159 is a prime.

It is a super-2 number, since 2×169000447² = 57122302172399618, which contains 22 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 (169000147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097329 + ... + 1097482.

It is an arithmetic number, because the mean of its divisors is an integer number (26337744).

Almost surely, 2^169000447 is an apocalyptic number.

169000447 is a deficient number, since it is larger than the sum of its proper divisors (41701505).

169000447 is a wasteful number, since it uses less digits than its factorization.

169000447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2194829.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 169000447 is about 13000.0171922963. The cubic root of 169000447 is about 552.8779688157.

The spelling of 169000447 in words is "one hundred sixty-nine million, four hundred forty-seven", and thus it is an aban number.