873447829 has 2 divisors, whose sum is σ = 873447830. Its totient is φ = 873447828.

The previous prime is 873447823. The next prime is 873447857. The reversal of 873447829 is 928744378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 604422225 + 269025604 = 24585^2 + 16402^2 .

It is a cyclic number.

It is not a de Polignac number, because 873447829 - 2⁵ = 873447797 is a prime.

It is a super-2 number, since 2×873447829² = 1525822219969626482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (873447823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436723914 + 436723915.

It is an arithmetic number, because the mean of its divisors is an integer number (436723915).

Almost surely, 2^873447829 is an apocalyptic number.

It is an amenable number.

873447829 is a deficient number, since it is larger than the sum of its proper divisors (1).

873447829 is an equidigital number, since it uses as much as digits as its factorization.

873447829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2709504, while the sum is 52.

The square root of 873447829 is about 29554.1507913863. The cubic root of 873447829 is about 955.8996954368.

The spelling of 873447829 in words is "eight hundred seventy-three million, four hundred forty-seven thousand, eight hundred twenty-nine".