80672670 has 144 divisors (see below), whose sum is σ = 239645952. Its totient is φ = 18714240.

The previous prime is 80672659. The next prime is 80672677. The reversal of 80672670 is 7627608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80672677) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 422275 + ... + 422465.

It is an arithmetic number, because the mean of its divisors is an integer number (1664208).

Almost surely, 2^80672670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80672670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119822976).

80672670 is an abundant number, since it is smaller than the sum of its proper divisors (158973282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80672670 is a wasteful number, since it uses less digits than its factorization.

80672670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 80672670 is about 8981.7965908831. The cubic root of 80672670 is about 432.0912551562.

The spelling of 80672670 in words is "eighty million, six hundred seventy-two thousand, six hundred seventy".