80670172 has 24 divisors (see below), whose sum is σ = 154465920. Its totient is φ = 36558960.

The previous prime is 80670157. The next prime is 80670173. The reversal of 80670172 is 27107608.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80670173) 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 7 ways as a sum of consecutive naturals, for example, 13243 + ... + 18349.

It is an arithmetic number, because the mean of its divisors is an integer number (6436080).

Almost surely, 2^80670172 is an apocalyptic number.

It is an amenable number.

80670172 is a deficient number, since it is larger than the sum of its proper divisors (73795748).

80670172 is a wasteful number, since it uses less digits than its factorization.

80670172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5481 (or 5479 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 80670172 is about 8981.6575307679. The cubic root of 80670172 is about 432.0867952604.

The spelling of 80670172 in words is "eighty million, six hundred seventy thousand, one hundred seventy-two".