87983849 has 2 divisors, whose sum is σ = 87983850. Its totient is φ = 87983848.

The previous prime is 87983807. The next prime is 87983879. The reversal of 87983849 is 94838978.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85895824 + 2088025 = 9268^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 87983849 - 2²⁰ = 86935273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87983794 and 87983803.

It is not a weakly prime, because it can be changed into another prime (87983879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43991924 + 43991925.

It is an arithmetic number, because the mean of its divisors is an integer number (43991925).

Almost surely, 2^87983849 is an apocalyptic number.

It is an amenable number.

87983849 is a deficient number, since it is larger than the sum of its proper divisors (1).

87983849 is an equidigital number, since it uses as much as digits as its factorization.

87983849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 56.

The square root of 87983849 is about 9379.9706289519. The cubic root of 87983849 is about 444.7688047047.

The spelling of 87983849 in words is "eighty-seven million, nine hundred eighty-three thousand, eight hundred forty-nine".