87870347 has 2 divisors, whose sum is σ = 87870348. Its totient is φ = 87870346.

The previous prime is 87870311. The next prime is 87870353. The reversal of 87870347 is 74307878.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87870347 - 2⁶ = 87870283 is a prime.

It is a Chen prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 87870298 and 87870307.

It is not a weakly prime, because it can be changed into another prime (87870397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43935173 + 43935174.

It is an arithmetic number, because the mean of its divisors is an integer number (43935174).

Almost surely, 2^87870347 is an apocalyptic number.

87870347 is a deficient number, since it is larger than the sum of its proper divisors (1).

87870347 is an equidigital number, since it uses as much as digits as its factorization.

87870347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 87870347 is about 9373.9184442793. The cubic root of 87870347 is about 444.5774670410.

The spelling of 87870347 in words is "eighty-seven million, eight hundred seventy thousand, three hundred forty-seven".