80634172 has 12 divisors (see below), whose sum is σ = 141318856. Its totient is φ = 40257360.

The previous prime is 80634143. The next prime is 80634173. The reversal of 80634172 is 27143608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80634173) 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, 11823 + ... + 17350.

Almost surely, 2^80634172 is an apocalyptic number.

It is an amenable number.

80634172 is a deficient number, since it is larger than the sum of its proper divisors (60684684).

80634172 is a wasteful number, since it uses less digits than its factorization.

80634172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29868 (or 29866 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 80634172 is about 8979.6532227030. The cubic root of 80634172 is about 432.0225111155.

The spelling of 80634172 in words is "eighty million, six hundred thirty-four thousand, one hundred seventy-two".