878951431 has 2 divisors, whose sum is σ = 878951432. Its totient is φ = 878951430.

The previous prime is 878951413. The next prime is 878951449. The reversal of 878951431 is 134159878.

It is a happy number.

878951431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (878951413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (878951413) and next prime (878951449).

It is a cyclic number.

It is not a de Polignac number, because 878951431 - 2⁷ = 878951303 is a prime.

It is a super-2 number, since 2×878951431² = 1545111236113895522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (878951471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439475715 + 439475716.

It is an arithmetic number, because the mean of its divisors is an integer number (439475716).

Almost surely, 2^878951431 is an apocalyptic number.

878951431 is a deficient number, since it is larger than the sum of its proper divisors (1).

878951431 is an equidigital number, since it uses as much as digits as its factorization.

878951431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 46.

The square root of 878951431 is about 29647.1150535765. The cubic root of 878951431 is about 957.9032039003.

The spelling of 878951431 in words is "eight hundred seventy-eight million, nine hundred fifty-one thousand, four hundred thirty-one".