87418427 has 2 divisors, whose sum is σ = 87418428. Its totient is φ = 87418426.

The previous prime is 87418421. The next prime is 87418459. The reversal of 87418427 is 72481478.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87418427 - 2¹⁰ = 87417403 is a prime.

It is not a weakly prime, because it can be changed into another prime (87418421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43709213 + 43709214.

It is an arithmetic number, because the mean of its divisors is an integer number (43709214).

Almost surely, 2^87418427 is an apocalyptic number.

87418427 is a deficient number, since it is larger than the sum of its proper divisors (1).

87418427 is an equidigital number, since it uses as much as digits as its factorization.

87418427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100352, while the sum is 41.

The square root of 87418427 is about 9349.7821899764. The cubic root of 87418427 is about 443.8139979905.

The spelling of 87418427 in words is "eighty-seven million, four hundred eighteen thousand, four hundred twenty-seven".