867541 has 2 divisors, whose sum is σ = 867542. Its totient is φ = 867540.

The previous prime is 867511. The next prime is 867547. The reversal of 867541 is 145768.

867541 = T₇₅₉ + T₇₆₀ + T₇₆₁.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758641 + 108900 = 871^2 + 330^2 .

It is a cyclic number.

It is not a de Polignac number, because 867541 - 2⁵ = 867509 is a prime.

It is a Chen prime.

It is an Ulam number.

867541 is a lucky number.

It is equal to p₆₈₉₀₈ and since 867541 and 68908 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433770 + 433771.

It is an arithmetic number, because the mean of its divisors is an integer number (433771).

2⁸⁶⁷⁵⁴¹ is an apocalyptic number.

867541 is the 761-st centered triangular number.

It is an amenable number.

867541 is a deficient number, since it is larger than the sum of its proper divisors (1).

867541 is an equidigital number, since it uses as much as digits as its factorization.

867541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 867541 is about 931.4188102030. The cubic root of 867541 is about 95.3740012103.

The spelling of 867541 in words is "eight hundred sixty-seven thousand, five hundred forty-one".