81410008 has 32 divisors (see below), whose sum is σ = 165393360. Its totient is φ = 37416960.

The previous prime is 81409973. The next prime is 81410009. The reversal of 81410008 is 80001418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81410009) 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, 1113 + ... + 12808.

Almost surely, 2^81410008 is an apocalyptic number.

It is an amenable number.

81410008 is an abundant number, since it is smaller than the sum of its proper divisors (83983352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81410008 is a wasteful number, since it uses less digits than its factorization.

81410008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13987 (or 13983 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 81410008 is about 9022.7494700895. The cubic root of 81410008 is about 433.4036845674.

The spelling of 81410008 in words is "eighty-one million, four hundred ten thousand, eight".