905671 has 12 divisors (see below), whose sum is σ = 1027728. Its totient is φ = 796224.

The previous prime is 905659. The next prime is 905677. The reversal of 905671 is 176509.

It is a happy number.

It is not a de Polignac number, because 905671 - 2¹⁹ = 381383 is a prime.

905671 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3771 + ... + 4003.

It is an arithmetic number, because the mean of its divisors is an integer number (85644).

2⁹⁰⁵⁶⁷¹ is an apocalyptic number.

905671 is a deficient number, since it is larger than the sum of its proper divisors (122057).

905671 is a wasteful number, since it uses less digits than its factorization.

905671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 905671 is about 951.6674839459. The cubic root of 905671 is about 96.7513025440.

The spelling of 905671 in words is "nine hundred five thousand, six hundred seventy-one".