97490969 has 2 divisors, whose sum is σ = 97490970. Its totient is φ = 97490968.

The previous prime is 97490959. The next prime is 97491013. The reversal of 97490969 is 96909479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92256025 + 5234944 = 9605^2 + 2288^2 .

It is an emirp because it is prime and its reverse (96909479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97490969 - 2⁸ = 97490713 is a prime.

It is a super-2 number, since 2×97490969² = 19008978073117922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 97490969.

It is not a weakly prime, because it can be changed into another prime (97490909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48745484 + 48745485.

It is an arithmetic number, because the mean of its divisors is an integer number (48745485).

Almost surely, 2^97490969 is an apocalyptic number.

It is an amenable number.

97490969 is a deficient number, since it is larger than the sum of its proper divisors (1).

97490969 is an equidigital number, since it uses as much as digits as its factorization.

97490969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The square root of 97490969 is about 9873.7515160146. The cubic root of 97490969 is about 460.2439931166.

The spelling of 97490969 in words is "ninety-seven million, four hundred ninety thousand, nine hundred sixty-nine".