87487441 has 2 divisors, whose sum is σ = 87487442. Its totient is φ = 87487440.

The previous prime is 87487427. The next prime is 87487447. The reversal of 87487441 is 14478478.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73017025 + 14470416 = 8545^2 + 3804^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87487441 is a prime.

It is not a weakly prime, because it can be changed into another prime (87487447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43743720 + 43743721.

It is an arithmetic number, because the mean of its divisors is an integer number (43743721).

Almost surely, 2^87487441 is an apocalyptic number.

It is an amenable number.

87487441 is a deficient number, since it is larger than the sum of its proper divisors (1).

87487441 is an equidigital number, since it uses as much as digits as its factorization.

87487441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 200704, while the sum is 43.

The square root of 87487441 is about 9353.4721360573. The cubic root of 87487441 is about 443.9307595000.

The spelling of 87487441 in words is "eighty-seven million, four hundred eighty-seven thousand, four hundred forty-one".