81382962 has 8 divisors (see below), whose sum is σ = 162765936. Its totient is φ = 27127652.

The previous prime is 81382949. The next prime is 81383011. The reversal of 81382962 is 26928318.

It is a happy number.

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

81382962 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 81382962.

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, 6781908 + ... + 6781919.

It is an arithmetic number, because the mean of its divisors is an integer number (20345742).

Almost surely, 2^81382962 is an apocalyptic number.

81382962 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

81382962 is a wasteful number, since it uses less digits than its factorization.

81382962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13563832.

The product of its digits is 41472, while the sum is 39.

The square root of 81382962 is about 9021.2505784952. The cubic root of 81382962 is about 433.3556841857.

The spelling of 81382962 in words is "eighty-one million, three hundred eighty-two thousand, nine hundred sixty-two".