968993659 has 4 divisors (see below), whose sum is σ = 1025993304. Its totient is φ = 911994016.

The previous prime is 968993653. The next prime is 968993671. The reversal of 968993659 is 956399869.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956399869 = 23 ⋅41582603.

It is a cyclic number.

It is not a de Polignac number, because 968993659 - 2⁹ = 968993147 is a prime.

It is a super-2 number, since 2×968993659² = 1877897422364416562, which contains 22 as substring.

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 968993659.

It is not an unprimeable number, because it can be changed into a prime (968993653) 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, 28499797 + ... + 28499830.

It is an arithmetic number, because the mean of its divisors is an integer number (256498326).

Almost surely, 2^968993659 is an apocalyptic number.

968993659 is a deficient number, since it is larger than the sum of its proper divisors (56999645).

968993659 is a wasteful number, since it uses less digits than its factorization.

968993659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56999644.

The product of its digits is 28343520, while the sum is 64.

The square root of 968993659 is about 31128.6629812461. The cubic root of 968993659 is about 989.5558525337. Note that the first 3 decimals are identical.

The spelling of 968993659 in words is "nine hundred sixty-eight million, nine hundred ninety-three thousand, six hundred fifty-nine".