97964773 has 2 divisors, whose sum is σ = 97964774. Its totient is φ = 97964772.

The previous prime is 97964747. The next prime is 97964809. The reversal of 97964773 is 37746979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57426084 + 40538689 = 7578^2 + 6367^2 .

It is a cyclic number.

It is not a de Polignac number, because 97964773 - 2⁹ = 97964261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97964773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97964173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48982386 + 48982387.

It is an arithmetic number, because the mean of its divisors is an integer number (48982387).

Almost surely, 2^97964773 is an apocalyptic number.

It is an amenable number.

97964773 is a deficient number, since it is larger than the sum of its proper divisors (1).

97964773 is an equidigital number, since it uses as much as digits as its factorization.

97964773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2000376, while the sum is 52.

The square root of 97964773 is about 9897.7155445082. The cubic root of 97964773 is about 460.9883804632.

The spelling of 97964773 in words is "ninety-seven million, nine hundred sixty-four thousand, seven hundred seventy-three".