81932462 has 8 divisors (see below), whose sum is σ = 123333816. Its totient is φ = 40821192.

The previous prime is 81932441. The next prime is 81932489. The reversal of 81932462 is 26423918.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71813 + ... + 72944.

It is an arithmetic number, because the mean of its divisors is an integer number (15416727).

Almost surely, 2^81932462 is an apocalyptic number.

81932462 is a deficient number, since it is larger than the sum of its proper divisors (41401354).

81932462 is a wasteful number, since it uses less digits than its factorization.

81932462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145042.

The product of its digits is 20736, while the sum is 35.

The square root of 81932462 is about 9051.6552077507. The cubic root of 81932462 is about 434.3288403721.

The spelling of 81932462 in words is "eighty-one million, nine hundred thirty-two thousand, four hundred sixty-two".