87893447 has 2 divisors, whose sum is σ = 87893448. Its totient is φ = 87893446.

The previous prime is 87893437. The next prime is 87893471. The reversal of 87893447 is 74439878.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87893447 - 2²⁴ = 71116231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87893395 and 87893404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87893437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43946723 + 43946724.

It is an arithmetic number, because the mean of its divisors is an integer number (43946724).

Almost surely, 2^87893447 is an apocalyptic number.

87893447 is a deficient number, since it is larger than the sum of its proper divisors (1).

87893447 is an equidigital number, since it uses as much as digits as its factorization.

87893447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The square root of 87893447 is about 9375.1505054586. The cubic root of 87893447 is about 444.6164215539.

The spelling of 87893447 in words is "eighty-seven million, eight hundred ninety-three thousand, four hundred forty-seven".