1012207898 has 8 divisors (see below), whose sum is σ = 1635105108. Its totient is φ = 467172864.

The previous prime is 1012207873. The next prime is 1012207921. The reversal of 1012207898 is 8987022101.

It can be written as a sum of positive squares in 2 ways, for example, as 947839369 + 64368529 = 30787^2 + 8023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 19465511 + ... + 19465562.

Almost surely, 2^1012207898 is an apocalyptic number.

1012207898 is a deficient number, since it is larger than the sum of its proper divisors (622897210).

1012207898 is a wasteful number, since it uses less digits than its factorization.

1012207898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38931088.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 1012207898 is about 31815.2148821912. The cubic root of 1012207898 is about 1004.0528515376.

Adding to 1012207898 its reverse (8987022101), we get a palindrome (9999229999).

The spelling of 1012207898 in words is "one billion, twelve million, two hundred seven thousand, eight hundred ninety-eight".