87474491827 has 2 divisors, whose sum is σ = 87474491828. Its totient is φ = 87474491826.

The previous prime is 87474491821. The next prime is 87474491879. The reversal of 87474491827 is 72819447478.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87474491827 - 2³⁵ = 53114753459 is a prime.

It is not a weakly prime, because it can be changed into another prime (87474491821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43737245913 + 43737245914.

It is an arithmetic number, because the mean of its divisors is an integer number (43737245914).

Almost surely, 2^87474491827 is an apocalyptic number.

87474491827 is a deficient number, since it is larger than the sum of its proper divisors (1).

87474491827 is an equidigital number, since it uses as much as digits as its factorization.

87474491827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25288704, while the sum is 61.

The spelling of 87474491827 in words is "eighty-seven billion, four hundred seventy-four million, four hundred ninety-one thousand, eight hundred twenty-seven".