1946998117 has 4 divisors (see below), whose sum is σ = 2061527436. Its totient is φ = 1832468800.

The previous prime is 1946998103. The next prime is 1946998133. The reversal of 1946998117 is 7118996491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7118996491 = 54037 ⋅131743.

It can be written as a sum of positive squares in 2 ways, for example, as 1684363681 + 262634436 = 41041^2 + 16206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1946998117 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 (1946998217) 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, 57264634 + ... + 57264667.

It is an arithmetic number, because the mean of its divisors is an integer number (515381859).

Almost surely, 2^1946998117 is an apocalyptic number.

1946998117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1946998117 is a deficient number, since it is larger than the sum of its proper divisors (114529319).

1946998117 is a wasteful number, since it uses less digits than its factorization.

1946998117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114529318.

The product of its digits is 979776, while the sum is 55.

The square root of 1946998117 is about 44124.8016086192. The cubic root of 1946998117 is about 1248.6915624976.

The spelling of 1946998117 in words is "one billion, nine hundred forty-six million, nine hundred ninety-eight thousand, one hundred seventeen".