71670260 has 24 divisors (see below), whose sum is σ = 150675336. Its totient is φ = 28636160.

The previous prime is 71670259. The next prime is 71670331. The reversal of 71670260 is 6207617.

It can be written as a sum of positive squares in 4 ways, for example, as 132496 + 71537764 = 364^2 + 8458^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25904 + ... + 28536.

It is an arithmetic number, because the mean of its divisors is an integer number (6278139).

Almost surely, 2^71670260 is an apocalyptic number.

It is an amenable number.

71670260 is an abundant number, since it is smaller than the sum of its proper divisors (79005076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71670260 is a wasteful number, since it uses less digits than its factorization.

71670260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003 (or 4001 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 71670260 is about 8465.8289611827. The cubic root of 71670260 is about 415.3807122316.

Adding to 71670260 its reverse (6207617), we get a palindrome (77877877).

The spelling of 71670260 in words is "seventy-one million, six hundred seventy thousand, two hundred sixty".