80434856 has 16 divisors (see below), whose sum is σ = 150918900. Its totient is φ = 40189824.

The previous prime is 80434853. The next prime is 80434859. The reversal of 80434856 is 65843408.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80434853) and next prime (80434859).

It can be written as a sum of positive squares in 2 ways, for example, as 71132356 + 9302500 = 8434^2 + 3050^2 .

It is not an unprimeable number, because it can be changed into a prime (80434853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14306 + ... + 19118.

Almost surely, 2^80434856 is an apocalyptic number.

It is an amenable number.

80434856 is a deficient number, since it is larger than the sum of its proper divisors (70484044).

80434856 is a wasteful number, since it uses less digits than its factorization.

80434856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908 (or 6904 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 80434856 is about 8968.5481545231. The cubic root of 80434856 is about 431.6662517119. Note that the first 3 decimals are identical.

The spelling of 80434856 in words is "eighty million, four hundred thirty-four thousand, eight hundred fifty-six".