83332981 has 2 divisors, whose sum is σ = 83332982. Its totient is φ = 83332980.

The previous prime is 83332969. The next prime is 83333017. The reversal of 83332981 is 18923338.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77616100 + 5716881 = 8810^2 + 2391^2 .

It is a cyclic number.

It is not a de Polignac number, because 83332981 - 2¹⁵ = 83300213 is a prime.

It is a super-2 number, since 2×83332981² = 13888771444692722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83332981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83332901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41666490 + 41666491.

It is an arithmetic number, because the mean of its divisors is an integer number (41666491).

Almost surely, 2^83332981 is an apocalyptic number.

It is an amenable number.

83332981 is a deficient number, since it is larger than the sum of its proper divisors (1).

83332981 is an equidigital number, since it uses as much as digits as its factorization.

83332981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 83332981 is about 9128.6899936409. The cubic root of 83332981 is about 436.7896167842.

The spelling of 83332981 in words is "eighty-three million, three hundred thirty-two thousand, nine hundred eighty-one".