671210536 has 8 divisors (see below), whose sum is σ = 1258519770. Its totient is φ = 335605264.

The previous prime is 671210531. The next prime is 671210537. The reversal of 671210536 is 635012176.

It can be written as a sum of positive squares in only one way, i.e., 407797636 + 263412900 = 20194^2 + 16230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 671210498 and 671210507.

It is not an unprimeable number, because it can be changed into a prime (671210531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41950651 + ... + 41950666.

Almost surely, 2^671210536 is an apocalyptic number.

It is an amenable number.

671210536 is a deficient number, since it is larger than the sum of its proper divisors (587309234).

671210536 is a wasteful number, since it uses less digits than its factorization.

671210536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83901323 (or 83901319 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 671210536 is about 25907.7312013229. The cubic root of 671210536 is about 875.5606903262.

The spelling of 671210536 in words is "six hundred seventy-one million, two hundred ten thousand, five hundred thirty-six".