81470411 has 16 divisors (see below), whose sum is σ = 93242880. Its totient is φ = 70512480.

The previous prime is 81470399. The next prime is 81470413. The reversal of 81470411 is 11407418.

It is a cyclic number.

It is not a de Polignac number, because 81470411 - 2¹⁴ = 81454027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81470413) 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, 17000 + ... + 21258.

It is an arithmetic number, because the mean of its divisors is an integer number (5827680).

Almost surely, 2^81470411 is an apocalyptic number.

81470411 is a deficient number, since it is larger than the sum of its proper divisors (11772469).

81470411 is a wasteful number, since it uses less digits than its factorization.

81470411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 81470411 is about 9026.0961107225. The cubic root of 81470411 is about 433.5108475216.

Adding to 81470411 its reverse (11407418), we get a palindrome (92877829).

The spelling of 81470411 in words is "eighty-one million, four hundred seventy thousand, four hundred eleven".