427002187 has 2 divisors, whose sum is σ = 427002188. Its totient is φ = 427002186.

The previous prime is 427002161. The next prime is 427002193. The reversal of 427002187 is 781200724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427002187 - 2¹⁵ = 426969419 is a prime.

It is not a weakly prime, because it can be changed into another prime (427002127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213501093 + 213501094.

It is an arithmetic number, because the mean of its divisors is an integer number (213501094).

Almost surely, 2^427002187 is an apocalyptic number.

427002187 is a deficient number, since it is larger than the sum of its proper divisors (1).

427002187 is an equidigital number, since it uses as much as digits as its factorization.

427002187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 427002187 is about 20664.0312378781. The cubic root of 427002187 is about 753.0261068521.

The spelling of 427002187 in words is "four hundred twenty-seven million, two thousand, one hundred eighty-seven".