87431063 has 2 divisors, whose sum is σ = 87431064. Its totient is φ = 87431062.

The previous prime is 87431041. The next prime is 87431077. The reversal of 87431063 is 36013478.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87431063 - 2⁶ = 87430999 is a prime.

It is equal to p_5076680 and since 87431063 and 5076680 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87431023) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43715531 + 43715532.

It is an arithmetic number, because the mean of its divisors is an integer number (43715532).

Almost surely, 2^87431063 is an apocalyptic number.

87431063 is a deficient number, since it is larger than the sum of its proper divisors (1).

87431063 is an equidigital number, since it uses as much as digits as its factorization.

87431063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 87431063 is about 9350.4579032259. The cubic root of 87431063 is about 443.8353808335.

The spelling of 87431063 in words is "eighty-seven million, four hundred thirty-one thousand, sixty-three".