80398071 has 12 divisors (see below), whose sum is σ = 125063848. Its totient is φ = 49475664.

The previous prime is 80398051. The next prime is 80398079. The reversal of 80398071 is 17089308.

It is not a de Polignac number, because 80398071 - 2¹⁰ = 80397047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80398079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 343465 + ... + 343698.

Almost surely, 2^80398071 is an apocalyptic number.

80398071 is a deficient number, since it is larger than the sum of its proper divisors (44665777).

80398071 is a wasteful number, since it uses less digits than its factorization.

80398071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687182 (or 687179 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 80398071 is about 8966.4971421397. The cubic root of 80398071 is about 431.6004375235.

It can be divided in two parts, 8039 and 8071, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 80398071 in words is "eighty million, three hundred ninety-eight thousand, seventy-one".