662731671 has 16 divisors (see below), whose sum is σ = 1042454528. Its totient is φ = 366487200.

The previous prime is 662731661. The next prime is 662731673. The reversal of 662731671 is 176137266.

It is not a de Polignac number, because 662731671 - 2⁶ = 662731607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662731673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508360 + ... + 509661.

It is an arithmetic number, because the mean of its divisors is an integer number (65153408).

Almost surely, 2^662731671 is an apocalyptic number.

662731671 is a deficient number, since it is larger than the sum of its proper divisors (379722857).

662731671 is a wasteful number, since it uses less digits than its factorization.

662731671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018062.

The product of its digits is 63504, while the sum is 39.

The square root of 662731671 is about 25743.5753344402. The cubic root of 662731671 is about 871.8583042601.

The spelling of 662731671 in words is "six hundred sixty-two million, seven hundred thirty-one thousand, six hundred seventy-one".