81700962 has 16 divisors (see below), whose sum is σ = 186745152. Its totient is φ = 23343120.

The previous prime is 81700937. The next prime is 81701029. The reversal of 81700962 is 26900718.

It is a super-3 number, since 3×81700962³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972589 + ... + 972672.

It is an arithmetic number, because the mean of its divisors is an integer number (11671572).

Almost surely, 2^81700962 is an apocalyptic number.

81700962 is an abundant number, since it is smaller than the sum of its proper divisors (105044190).

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

81700962 is a wasteful number, since it uses less digits than its factorization.

81700962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945273.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 81700962 is about 9038.8584456224. The cubic root of 81700962 is about 433.9193894187.

The spelling of 81700962 in words is "eighty-one million, seven hundred thousand, nine hundred sixty-two".