862013 has 2 divisors, whose sum is σ = 862014. Its totient is φ = 862012.

The previous prime is 862009. The next prime is 862031. The reversal of 862013 is 310268.

Together with next prime (862031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 683929 + 178084 = 827^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 862013 - 2² = 862009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (862033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431006 + 431007.

It is an arithmetic number, because the mean of its divisors is an integer number (431007).

2⁸⁶²⁰¹³ is an apocalyptic number.

It is an amenable number.

862013 is a deficient number, since it is larger than the sum of its proper divisors (1).

862013 is an equidigital number, since it uses as much as digits as its factorization.

862013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 862013 is about 928.4465520427. The cubic root of 862013 is about 95.1709939761.

The spelling of 862013 in words is "eight hundred sixty-two thousand, thirteen".