6995920385 has 8 divisors (see below), whose sum is σ = 8395823016. Its totient is φ = 5596257280.

The previous prime is 6995920369. The next prime is 6995920397. The reversal of 6995920385 is 5830295996.

It can be written as a sum of positive squares in 4 ways, for example, as 1357111921 + 5638808464 = 36839^2 + 75092^2 .

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

It is not a de Polignac number, because 6995920385 - 2⁴ = 6995920369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6995920385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12287 + ... + 118923.

It is an arithmetic number, because the mean of its divisors is an integer number (1049477877).

Almost surely, 2^6995920385 is an apocalyptic number.

It is an amenable number.

6995920385 is a deficient number, since it is larger than the sum of its proper divisors (1399902631).

6995920385 is a wasteful number, since it uses less digits than its factorization.

6995920385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119763.

The product of its (nonzero) digits is 5248800, while the sum is 56.

The square root of 6995920385 is about 83641.6187373248. The cubic root of 6995920385 is about 1912.5594904245.

The spelling of 6995920385 in words is "six billion, nine hundred ninety-five million, nine hundred twenty thousand, three hundred eighty-five".