87480643 has 2 divisors, whose sum is σ = 87480644. Its totient is φ = 87480642.

The previous prime is 87480611. The next prime is 87480721. The reversal of 87480643 is 34608478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87480643 - 2⁵ = 87480611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87480596 and 87480605.

It is not a weakly prime, because it can be changed into another prime (87480143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43740321 + 43740322.

It is an arithmetic number, because the mean of its divisors is an integer number (43740322).

Almost surely, 2^87480643 is an apocalyptic number.

87480643 is a deficient number, since it is larger than the sum of its proper divisors (1).

87480643 is an equidigital number, since it uses as much as digits as its factorization.

87480643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 87480643 is about 9353.1087345331. The cubic root of 87480643 is about 443.9192610136.

The spelling of 87480643 in words is "eighty-seven million, four hundred eighty thousand, six hundred forty-three".