687086963 has 2 divisors, whose sum is σ = 687086964. Its totient is φ = 687086962.

The previous prime is 687086923. The next prime is 687086969. The reversal of 687086963 is 369680786.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 687086963 - 2⁶ = 687086899 is a prime.

It is not a weakly prime, because it can be changed into another prime (687086969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343543481 + 343543482.

It is an arithmetic number, because the mean of its divisors is an integer number (343543482).

Almost surely, 2^687086963 is an apocalyptic number.

687086963 is a deficient number, since it is larger than the sum of its proper divisors (1).

687086963 is an equidigital number, since it uses as much as digits as its factorization.

687086963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 687086963 is about 26212.3437143648. The cubic root of 687086963 is about 882.4103012139.

The spelling of 687086963 in words is "six hundred eighty-seven million, eighty-six thousand, nine hundred sixty-three".