538907698 has 16 divisors (see below), whose sum is σ = 924589440. Its totient is φ = 230773536.

The previous prime is 538907693. The next prime is 538907717. The reversal of 538907698 is 896709835.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (538907693) 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 7 ways as a sum of consecutive naturals, for example, 3115 + ... + 32977.

It is an arithmetic number, because the mean of its divisors is an integer number (57786840).

Almost surely, 2^538907698 is an apocalyptic number.

538907698 is a deficient number, since it is larger than the sum of its proper divisors (385681742).

538907698 is a wasteful number, since it uses less digits than its factorization.

538907698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31161.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 538907698 is about 23214.3855830819. The cubic root of 538907698 is about 813.7758469787.

The spelling of 538907698 in words is "five hundred thirty-eight million, nine hundred seven thousand, six hundred ninety-eight".