42827899 has 2 divisors, whose sum is σ = 42827900. Its totient is φ = 42827898.

The previous prime is 42827893. The next prime is 42827933. The reversal of 42827899 is 99872824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42827899 - 2³ = 42827891 is a prime.

It is not a weakly prime, because it can be changed into another prime (42827891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21413949 + 21413950.

It is an arithmetic number, because the mean of its divisors is an integer number (21413950).

Almost surely, 2^42827899 is an apocalyptic number.

42827899 is a deficient number, since it is larger than the sum of its proper divisors (1).

42827899 is an equidigital number, since it uses as much as digits as its factorization.

42827899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 49.

The square root of 42827899 is about 6544.3027894498. The cubic root of 42827899 is about 349.8717870520.

The spelling of 42827899 in words is "forty-two million, eight hundred twenty-seven thousand, eight hundred ninety-nine".