87405361 has 2 divisors, whose sum is σ = 87405362. Its totient is φ = 87405360.

The previous prime is 87405287. The next prime is 87405379. The reversal of 87405361 is 16350478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62094400 + 25310961 = 7880^2 + 5031^2 .

It is a cyclic number.

It is not a de Polignac number, because 87405361 - 2¹⁷ = 87274289 is a prime.

It is not a weakly prime, because it can be changed into another prime (87405061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43702680 + 43702681.

It is an arithmetic number, because the mean of its divisors is an integer number (43702681).

Almost surely, 2^87405361 is an apocalyptic number.

It is an amenable number.

87405361 is a deficient number, since it is larger than the sum of its proper divisors (1).

87405361 is an equidigital number, since it uses as much as digits as its factorization.

87405361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 87405361 is about 9349.0834310108. The cubic root of 87405361 is about 443.7918853276.

The spelling of 87405361 in words is "eighty-seven million, four hundred five thousand, three hundred sixty-one".