42619999 has 2 divisors, whose sum is σ = 42620000. Its totient is φ = 42619998.

The previous prime is 42619987. The next prime is 42620027. The reversal of 42619999 is 99991624.

42619999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42619999 - 2¹¹ = 42617951 is a prime.

42619999 is a modest number, since divided by 9999 gives 4261 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42613999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21309999 + 21310000.

It is an arithmetic number, because the mean of its divisors is an integer number (21310000).

Almost surely, 2^42619999 is an apocalyptic number.

42619999 is a deficient number, since it is larger than the sum of its proper divisors (1).

42619999 is an equidigital number, since it uses as much as digits as its factorization.

42619999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 49.

The square root of 42619999 is about 6528.3994209913. The cubic root of 42619999 is about 349.3047395364.

The spelling of 42619999 in words is "forty-two million, six hundred nineteen thousand, nine hundred ninety-nine".