87418061 has 2 divisors, whose sum is σ = 87418062. Its totient is φ = 87418060.

The previous prime is 87418033. The next prime is 87418081. The reversal of 87418061 is 16081478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48916036 + 38502025 = 6994^2 + 6205^2 .

It is a cyclic number.

It is not a de Polignac number, because 87418061 - 2⁶ = 87417997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87418081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43709030 + 43709031.

It is an arithmetic number, because the mean of its divisors is an integer number (43709031).

Almost surely, 2^87418061 is an apocalyptic number.

It is an amenable number.

87418061 is a deficient number, since it is larger than the sum of its proper divisors (1).

87418061 is an equidigital number, since it uses as much as digits as its factorization.

87418061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 87418061 is about 9349.7626173075. The cubic root of 87418061 is about 443.8133786087.

The spelling of 87418061 in words is "eighty-seven million, four hundred eighteen thousand, sixty-one".