80479971 has 24 divisors (see below), whose sum is σ = 136574256. Its totient is φ = 45023040.

The previous prime is 80479969. The next prime is 80479979. The reversal of 80479971 is 17997408.

It is not a de Polignac number, because 80479971 - 2¹ = 80479969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80479979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29980 + ... + 32553.

It is an arithmetic number, because the mean of its divisors is an integer number (5690594).

Almost surely, 2^80479971 is an apocalyptic number.

80479971 is a deficient number, since it is larger than the sum of its proper divisors (56094285).

80479971 is a wasteful number, since it uses less digits than its factorization.

80479971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62563 (or 62560 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 80479971 is about 8971.0629804946. The cubic root of 80479971 is about 431.7469421986.

The spelling of 80479971 in words is "eighty million, four hundred seventy-nine thousand, nine hundred seventy-one".