42698899 has 4 divisors (see below), whose sum is σ = 43336264. Its totient is φ = 42061536.

The previous prime is 42698893. The next prime is 42698923. The reversal of 42698899 is 99889624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42698899 - 2⁹ = 42698387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42698893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318582 + ... + 318715.

It is an arithmetic number, because the mean of its divisors is an integer number (10834066).

Almost surely, 2^42698899 is an apocalyptic number.

42698899 is a deficient number, since it is larger than the sum of its proper divisors (637365).

42698899 is an equidigital number, since it uses as much as digits as its factorization.

42698899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637364.

The product of its digits is 2239488, while the sum is 55.

The square root of 42698899 is about 6534.4394556840. The cubic root of 42698899 is about 349.5201560483.

The spelling of 42698899 in words is "forty-two million, six hundred ninety-eight thousand, eight hundred ninety-nine".