82350981 has 12 divisors (see below), whose sum is σ = 123053580. Its totient is φ = 53007360.

The previous prime is 82350949. The next prime is 82351007. The reversal of 82350981 is 18905328.

It can be written as a sum of positive squares in 2 ways, for example, as 54154881 + 28196100 = 7359^2 + 5310^2 .

It is not a de Polignac number, because 82350981 - 2⁵ = 82350949 is a prime.

It is a super-2 number, since 2×82350981² = 13563368143324722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82350581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 157500 + ... + 158021.

It is an arithmetic number, because the mean of its divisors is an integer number (10254465).

Almost surely, 2^82350981 is an apocalyptic number.

It is an amenable number.

82350981 is a deficient number, since it is larger than the sum of its proper divisors (40702599).

82350981 is a wasteful number, since it uses less digits than its factorization.

82350981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315556 (or 315553 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 82350981 is about 9074.7441286242. The cubic root of 82350981 is about 435.0671160809.

The spelling of 82350981 in words is "eighty-two million, three hundred fifty thousand, nine hundred eighty-one".