80540929 has 8 divisors (see below), whose sum is σ = 92388608. Its totient is φ = 68778720.

The previous prime is 80540899. The next prime is 80540969. The reversal of 80540929 is 92904508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80540929 - 2⁹ = 80540417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80540969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19332 + ... + 23125.

It is an arithmetic number, because the mean of its divisors is an integer number (11548576).

Almost surely, 2^80540929 is an apocalyptic number.

It is an amenable number.

80540929 is a deficient number, since it is larger than the sum of its proper divisors (11847679).

80540929 is a wasteful number, since it uses less digits than its factorization.

80540929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42735.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 80540929 is about 8974.4598166129. The cubic root of 80540929 is about 431.8559208169.

The spelling of 80540929 in words is "eighty million, five hundred forty thousand, nine hundred twenty-nine".