83450881 has 2 divisors, whose sum is σ = 83450882. Its totient is φ = 83450880.

The previous prime is 83450821. The next prime is 83450891. The reversal of 83450881 is 18805438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76737600 + 6713281 = 8760^2 + 2591^2 .

It is a cyclic number.

It is not a de Polignac number, because 83450881 - 2¹⁷ = 83319809 is a prime.

It is a super-2 number, since 2×83450881² = 13928099079352322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83450881.

It is not a weakly prime, because it can be changed into another prime (83450821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41725440 + 41725441.

It is an arithmetic number, because the mean of its divisors is an integer number (41725441).

Almost surely, 2^83450881 is an apocalyptic number.

It is an amenable number.

83450881 is a deficient number, since it is larger than the sum of its proper divisors (1).

83450881 is an equidigital number, since it uses as much as digits as its factorization.

83450881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 83450881 is about 9135.1453737748. The cubic root of 83450881 is about 436.9955105690.

It can be divided in two parts, 834 and 50881, that added together give a palindrome (51715).

The spelling of 83450881 in words is "eighty-three million, four hundred fifty thousand, eight hundred eighty-one".