87854567 has 2 divisors, whose sum is σ = 87854568. Its totient is φ = 87854566.

The previous prime is 87854509. The next prime is 87854573. The reversal of 87854567 is 76545878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87854567 - 2¹⁴ = 87838183 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87854167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43927283 + 43927284.

It is an arithmetic number, because the mean of its divisors is an integer number (43927284).

Almost surely, 2^87854567 is an apocalyptic number.

87854567 is a deficient number, since it is larger than the sum of its proper divisors (1).

87854567 is an equidigital number, since it uses as much as digits as its factorization.

87854567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1881600, while the sum is 50.

The square root of 87854567 is about 9373.0767093842. The cubic root of 87854567 is about 444.5508526307.

The spelling of 87854567 in words is "eighty-seven million, eight hundred fifty-four thousand, five hundred sixty-seven".