3898437006917 has 4 divisors (see below), whose sum is σ = 3993520836396. Its totient is φ = 3803353177440.

The previous prime is 3898437006899. The next prime is 3898437006931. The reversal of 3898437006917 is 7196007348983.

It is a Cunningham number, because it is equal to 1974446²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 187847695396 + 3710589311521 = 433414^2 + 1926289^2 .

It is a cyclic number.

It is not a de Polignac number, because 3898437006917 - 2⁸ = 3898437006661 is a prime.

It is a super-2 number, since 2×3898437006917² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898437906917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47541914678 + ... + 47541914759.

It is an arithmetic number, because the mean of its divisors is an integer number (998380209099).

Almost surely, 2^{3898437006917} is an apocalyptic number.

It is an amenable number.

3898437006917 is a deficient number, since it is larger than the sum of its proper divisors (95083829479).

3898437006917 is an equidigital number, since it uses as much as digits as its factorization.

3898437006917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95083829478.

The product of its (nonzero) digits is 54867456, while the sum is 65.

The spelling of 3898437006917 in words is "three trillion, eight hundred ninety-eight billion, four hundred thirty-seven million, six thousand, nine hundred seventeen".