83671849 has 2 divisors, whose sum is σ = 83671850. Its totient is φ = 83671848.

The previous prime is 83671817. The next prime is 83671859. The reversal of 83671849 is 94817638.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82446400 + 1225449 = 9080^2 + 1107^2 .

It is a cyclic number.

It is not a de Polignac number, because 83671849 - 2⁵ = 83671817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83671799 and 83671808.

It is not a weakly prime, because it can be changed into another prime (83671859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41835924 + 41835925.

It is an arithmetic number, because the mean of its divisors is an integer number (41835925).

Almost surely, 2^83671849 is an apocalyptic number.

It is an amenable number.

83671849 is a deficient number, since it is larger than the sum of its proper divisors (1).

83671849 is an equidigital number, since it uses as much as digits as its factorization.

83671849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 83671849 is about 9147.2317670430. The cubic root of 83671849 is about 437.3808746688.

The spelling of 83671849 in words is "eighty-three million, six hundred seventy-one thousand, eight hundred forty-nine".