42798827 has 2 divisors, whose sum is σ = 42798828. Its totient is φ = 42798826.

The previous prime is 42798799. The next prime is 42798857. The reversal of 42798827 is 72889724.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42798827 - 2¹⁰ = 42797803 is a prime.

It is not a weakly prime, because it can be changed into another prime (42798857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21399413 + 21399414.

It is an arithmetic number, because the mean of its divisors is an integer number (21399414).

Almost surely, 2^42798827 is an apocalyptic number.

42798827 is a deficient number, since it is larger than the sum of its proper divisors (1).

42798827 is an equidigital number, since it uses as much as digits as its factorization.

42798827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 47.

The square root of 42798827 is about 6542.0812437633. The cubic root of 42798827 is about 349.7926036599.

The spelling of 42798827 in words is "forty-two million, seven hundred ninety-eight thousand, eight hundred twenty-seven".