80532479 has 4 divisors (see below), whose sum is σ = 82245984. Its totient is φ = 78818976.

The previous prime is 80532457. The next prime is 80532481. The reversal of 80532479 is 97423508.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80532479 - 2¹⁶ = 80466943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80532409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 856682 + ... + 856775.

It is an arithmetic number, because the mean of its divisors is an integer number (20561496).

Almost surely, 2^80532479 is an apocalyptic number.

80532479 is a deficient number, since it is larger than the sum of its proper divisors (1713505).

80532479 is a wasteful number, since it uses less digits than its factorization.

80532479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713504.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 80532479 is about 8973.9890238400. The cubic root of 80532479 is about 431.8408174808.

The spelling of 80532479 in words is "eighty million, five hundred thirty-two thousand, four hundred seventy-nine".