6961385 has 4 divisors (see below), whose sum is σ = 8353668. Its totient is φ = 5569104.

The previous prime is 6961379. The next prime is 6961393. The reversal of 6961385 is 5831696.

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 4044121 + 2917264 = 2011^2 + 1708^2 .

It is a cyclic number.

It is not a de Polignac number, because 6961385 - 2⁶ = 6961321 is a prime.

It is a super-2 number, since 2×6961385² = 96921762236450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696134 + ... + 696143.

It is an arithmetic number, because the mean of its divisors is an integer number (2088417).

Almost surely, 2^6961385 is an apocalyptic number.

It is an amenable number.

6961385 is a deficient number, since it is larger than the sum of its proper divisors (1392283).

6961385 is a wasteful number, since it uses less digits than its factorization.

6961385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392282.

The product of its digits is 38880, while the sum is 38.

The square root of 6961385 is about 2638.4436700449. The cubic root of 6961385 is about 190.9407178757.

The spelling of 6961385 in words is "six million, nine hundred sixty-one thousand, three hundred eighty-five".