87590147 has 2 divisors, whose sum is σ = 87590148. Its totient is φ = 87590146.

The previous prime is 87590123. The next prime is 87590197. The reversal of 87590147 is 74109578.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87590147 - 2²⁶ = 20481283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (87590197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43795073 + 43795074.

It is an arithmetic number, because the mean of its divisors is an integer number (43795074).

Almost surely, 2^87590147 is an apocalyptic number.

87590147 is a deficient number, since it is larger than the sum of its proper divisors (1).

87590147 is an equidigital number, since it uses as much as digits as its factorization.

87590147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 87590147 is about 9358.9607863267. The cubic root of 87590147 is about 444.1044092713.

The spelling of 87590147 in words is "eighty-seven million, five hundred ninety thousand, one hundred forty-seven".