80871501 has 16 divisors (see below), whose sum is σ = 109440000. Its totient is φ = 53114880.

The previous prime is 80871493. The next prime is 80871509. The reversal of 80871501 is 10517808.

It is an interprime number because it is at equal distance from previous prime (80871493) and next prime (80871509).

It is not a de Polignac number, because 80871501 - 2³ = 80871493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80871509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64125 + ... + 65373.

It is an arithmetic number, because the mean of its divisors is an integer number (6840000).

Almost surely, 2^80871501 is an apocalyptic number.

It is an amenable number.

80871501 is a deficient number, since it is larger than the sum of its proper divisors (28568499).

80871501 is a wasteful number, since it uses less digits than its factorization.

80871501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 80871501 is about 8992.8583331441. The cubic root of 80871501 is about 432.4459504555.

The spelling of 80871501 in words is "eighty million, eight hundred seventy-one thousand, five hundred one".