969547993 has 2 divisors, whose sum is σ = 969547994. Its totient is φ = 969547992.

The previous prime is 969547939. The next prime is 969548009. The reversal of 969547993 is 399745969.

Together with previous prime (969547939) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 744907849 + 224640144 = 27293^2 + 14988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-969547993 is a prime.

It is not a weakly prime, because it can be changed into another prime (969547393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484773996 + 484773997.

It is an arithmetic number, because the mean of its divisors is an integer number (484773997).

Almost surely, 2^969547993 is an apocalyptic number.

It is an amenable number.

969547993 is a deficient number, since it is larger than the sum of its proper divisors (1).

969547993 is an equidigital number, since it uses as much as digits as its factorization.

969547993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16533720, while the sum is 61.

The square root of 969547993 is about 31137.5656241781. The cubic root of 969547993 is about 989.7445155794.

The spelling of 969547993 in words is "nine hundred sixty-nine million, five hundred forty-seven thousand, nine hundred ninety-three".