116978443 has 2 divisors, whose sum is σ = 116978444. Its totient is φ = 116978442.

The previous prime is 116978401. The next prime is 116978461. The reversal of 116978443 is 344879611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116978443 is a prime.

It is a super-2 number, since 2×116978443² = 27367912253408498, which contains 22 as substring.

It is equal to p_6679276 and since 116978443 and 6679276 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 116978443.

It is not a weakly prime, because it can be changed into another prime (116970443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58489221 + 58489222.

It is an arithmetic number, because the mean of its divisors is an integer number (58489222).

Almost surely, 2^116978443 is an apocalyptic number.

116978443 is a deficient number, since it is larger than the sum of its proper divisors (1).

116978443 is an equidigital number, since it uses as much as digits as its factorization.

116978443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 116978443 is about 10815.6573078107. The cubic root of 116978443 is about 489.0672844269.

The spelling of 116978443 in words is "one hundred sixteen million, nine hundred seventy-eight thousand, four hundred forty-three".