80671437 has 32 divisors (see below), whose sum is σ = 149007360. Its totient is φ = 41906160.

The previous prime is 80671429. The next prime is 80671439. The reversal of 80671437 is 73417608.

It is not a de Polignac number, because 80671437 - 2³ = 80671429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80671439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17323 + ... + 21480.

It is an arithmetic number, because the mean of its divisors is an integer number (4656480).

Almost surely, 2^80671437 is an apocalyptic number.

It is an amenable number.

80671437 is a deficient number, since it is larger than the sum of its proper divisors (68335923).

80671437 is a wasteful number, since it uses less digits than its factorization.

80671437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38830 (or 38824 counting only the distinct ones).

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

The square root of 80671437 is about 8981.7279517919. The cubic root of 80671437 is about 432.0890537860.

The spelling of 80671437 in words is "eighty million, six hundred seventy-one thousand, four hundred thirty-seven".