878667145 has 16 divisors (see below), whose sum is σ = 1076189760. Its totient is φ = 688526784.

The previous prime is 878667121. The next prime is 878667149. The reversal of 878667145 is 541766878.

It is a cyclic number.

It is not a de Polignac number, because 878667145 - 2¹⁷ = 878536073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 878667092 and 878667101.

It is not an unprimeable number, because it can be changed into a prime (878667149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52639 + ... + 67291.

It is an arithmetic number, because the mean of its divisors is an integer number (67261860).

Almost surely, 2^878667145 is an apocalyptic number.

It is an amenable number.

878667145 is a deficient number, since it is larger than the sum of its proper divisors (197522615).

878667145 is a wasteful number, since it uses less digits than its factorization.

878667145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14904.

The product of its digits is 2257920, while the sum is 52.

The square root of 878667145 is about 29642.3201689746. The cubic root of 878667145 is about 957.7999187716.

The spelling of 878667145 in words is "eight hundred seventy-eight million, six hundred sixty-seven thousand, one hundred forty-five".