358861 has 2 divisors, whose sum is σ = 358862. Its totient is φ = 358860.

The previous prime is 358859. The next prime is 358867. The reversal of 358861 is 168853.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265225 + 93636 = 515^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 358861 - 2¹ = 358859 is a prime.

Together with 358859, it forms a pair of twin primes.

358861 is a lucky number.

It is a plaindrome in base 11 and base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (358867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179430 + 179431.

It is an arithmetic number, because the mean of its divisors is an integer number (179431).

2³⁵⁸⁸⁶¹ is an apocalyptic number.

It is an amenable number.

358861 is a deficient number, since it is larger than the sum of its proper divisors (1).

358861 is an equidigital number, since it uses as much as digits as its factorization.

358861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 358861 is about 599.0500813788. The cubic root of 358861 is about 71.0627627264.

The spelling of 358861 in words is "three hundred fifty-eight thousand, eight hundred sixty-one".