3974798117 has 8 divisors (see below), whose sum is σ = 4020914520. Its totient is φ = 3928714240.

The previous prime is 3974798111. The next prime is 3974798143. The reversal of 3974798117 is 7118974793.

It is a Cunningham number, because it is equal to 63046²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 630436 + 3974167681 = 794^2 + 63041^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3974798117 - 2⁸ = 3974797861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3974798111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308117 + ... + 320757.

It is an arithmetic number, because the mean of its divisors is an integer number (502614315).

Almost surely, 2^3974798117 is an apocalyptic number.

It is an amenable number.

3974798117 is a deficient number, since it is larger than the sum of its proper divisors (46116403).

3974798117 is a wasteful number, since it uses less digits than its factorization.

3974798117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16263.

The product of its digits is 2667168, while the sum is 56.

The square root of 3974798117 is about 63046.0000079307. Note that the first 5 decimals coincide. The cubic root of 3974798117 is about 1584.0602345741.

The spelling of 3974798117 in words is "three billion, nine hundred seventy-four million, seven hundred ninety-eight thousand, one hundred seventeen".