961694693 has 4 divisors (see below), whose sum is σ = 961826880. Its totient is φ = 961562508.

The previous prime is 961694677. The next prime is 961694731. The reversal of 961694693 is 396496169.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 396496169 = 31 ⋅12790199.

It is a cyclic number.

It is not a de Polignac number, because 961694693 - 2⁴ = 961694677 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 (961694093) 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, 54503 + ... + 69956.

It is an arithmetic number, because the mean of its divisors is an integer number (240456720).

Almost surely, 2^961694693 is an apocalyptic number.

It is an amenable number.

961694693 is a deficient number, since it is larger than the sum of its proper divisors (132187).

961694693 is a wasteful number, since it uses less digits than its factorization.

961694693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132186.

The product of its digits is 1889568, while the sum is 53.

The square root of 961694693 is about 31011.2027016045. The cubic root of 961694693 is about 987.0649707600.

The spelling of 961694693 in words is "nine hundred sixty-one million, six hundred ninety-four thousand, six hundred ninety-three".