427090387 has 2 divisors, whose sum is σ = 427090388. Its totient is φ = 427090386.

The previous prime is 427090373. The next prime is 427090409. The reversal of 427090387 is 783090724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427090387 - 2¹¹ = 427088339 is a prime.

It is not a weakly prime, because it can be changed into another prime (427090327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213545193 + 213545194.

It is an arithmetic number, because the mean of its divisors is an integer number (213545194).

Almost surely, 2^427090387 is an apocalyptic number.

427090387 is a deficient number, since it is larger than the sum of its proper divisors (1).

427090387 is an equidigital number, since it uses as much as digits as its factorization.

427090387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 427090387 is about 20666.1652707995. The cubic root of 427090387 is about 753.0779507163.

The spelling of 427090387 in words is "four hundred twenty-seven million, ninety thousand, three hundred eighty-seven".