682215261 has 16 divisors (see below), whose sum is σ = 1119533184. Its totient is φ = 359849664.

The previous prime is 682215257. The next prime is 682215337. The reversal of 682215261 is 162512286.

It is not a de Polignac number, because 682215261 - 2² = 682215257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682215251) 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, 1249206 + ... + 1249751.

It is an arithmetic number, because the mean of its divisors is an integer number (69970824).

Almost surely, 2^682215261 is an apocalyptic number.

It is an amenable number.

682215261 is a deficient number, since it is larger than the sum of its proper divisors (437317923).

682215261 is a wasteful number, since it uses less digits than its factorization.

682215261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498980.

The product of its digits is 11520, while the sum is 33.

The square root of 682215261 is about 26119.2507740938. The cubic root of 682215261 is about 880.3198135960.

The spelling of 682215261 in words is "six hundred eighty-two million, two hundred fifteen thousand, two hundred sixty-one".