878920067 has 2 divisors, whose sum is σ = 878920068. Its totient is φ = 878920066.

The previous prime is 878920061. The next prime is 878920103. The reversal of 878920067 is 760029878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 878920067 - 2¹² = 878915971 is a prime.

It is a super-4 number, since 4×878920067⁴ (a number of 37 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (878920061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439460033 + 439460034.

It is an arithmetic number, because the mean of its divisors is an integer number (439460034).

Almost surely, 2^878920067 is an apocalyptic number.

878920067 is a deficient number, since it is larger than the sum of its proper divisors (1).

878920067 is an equidigital number, since it uses as much as digits as its factorization.

878920067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 878920067 is about 29646.5860935117. The cubic root of 878920067 is about 957.8918100081.

The spelling of 878920067 in words is "eight hundred seventy-eight million, nine hundred twenty thousand, sixty-seven".