878413 has 2 divisors, whose sum is σ = 878414. Its totient is φ = 878412.

The previous prime is 878411. The next prime is 878419. The reversal of 878413 is 314878.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 777924 + 100489 = 882^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 878413 - 2¹ = 878411 is a prime.

It is a super-3 number, since 3×878413³ = 2033375179875572991, which contains 333 as substring.

Together with 878411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (878411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439206 + 439207.

It is an arithmetic number, because the mean of its divisors is an integer number (439207).

2⁸⁷⁸⁴¹³ is an apocalyptic number.

It is an amenable number.

878413 is a deficient number, since it is larger than the sum of its proper divisors (1).

878413 is an equidigital number, since it uses as much as digits as its factorization.

878413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 31.

The square root of 878413 is about 937.2368964141. The cubic root of 878413 is about 95.7707565433.

The spelling of 878413 in words is "eight hundred seventy-eight thousand, four hundred thirteen".