1988067427 has 4 divisors (see below), whose sum is σ = 1988432656. Its totient is φ = 1987702200.

The previous prime is 1988067401. The next prime is 1988067467. The reversal of 1988067427 is 7247608891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7247608891 = 8741 ⋅829151.

It is a cyclic number.

It is not a de Polignac number, because 1988067427 - 2¹¹ = 1988065379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1988067467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174324 + ... + 185377.

It is an arithmetic number, because the mean of its divisors is an integer number (497108164).

Almost surely, 2^1988067427 is an apocalyptic number.

1988067427 is a deficient number, since it is larger than the sum of its proper divisors (365229).

1988067427 is an equidigital number, since it uses as much as digits as its factorization.

1988067427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365228.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The square root of 1988067427 is about 44587.7497413808. The cubic root of 1988067427 is about 1257.4103667863.

The spelling of 1988067427 in words is "one billion, nine hundred eighty-eight million, sixty-seven thousand, four hundred twenty-seven".