87734551 has 2 divisors, whose sum is σ = 87734552. Its totient is φ = 87734550.

The previous prime is 87734527. The next prime is 87734561. The reversal of 87734551 is 15543778.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87734551 - 2¹⁷ = 87603479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87734561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43867275 + 43867276.

It is an arithmetic number, because the mean of its divisors is an integer number (43867276).

Almost surely, 2^87734551 is an apocalyptic number.

87734551 is a deficient number, since it is larger than the sum of its proper divisors (1).

87734551 is an equidigital number, since it uses as much as digits as its factorization.

87734551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 40.

The square root of 87734551 is about 9366.6723546839. The cubic root of 87734551 is about 444.3483303250.

The spelling of 87734551 in words is "eighty-seven million, seven hundred thirty-four thousand, five hundred fifty-one".