878294499 has 16 divisors (see below), whose sum is σ = 1198179840. Its totient is φ = 572015520.

The previous prime is 878294471. The next prime is 878294519. The reversal of 878294499 is 994492878.

It is not a de Polignac number, because 878294499 - 2¹¹ = 878292451 is a prime.

It is a super-2 number, since 2×878294499² = 1542802453947322002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (878294999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75057 + ... + 85965.

It is an arithmetic number, because the mean of its divisors is an integer number (74886240).

Almost surely, 2^878294499 is an apocalyptic number.

878294499 is a deficient number, since it is larger than the sum of its proper divisors (319885341).

878294499 is a wasteful number, since it uses less digits than its factorization.

878294499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11530.

The product of its digits is 10450944, while the sum is 60.

The square root of 878294499 is about 29636.0337933402. The cubic root of 878294499 is about 957.6644974578.

The spelling of 878294499 in words is "eight hundred seventy-eight million, two hundred ninety-four thousand, four hundred ninety-nine".