97971469 has 2 divisors, whose sum is σ = 97971470. Its totient is φ = 97971468.

The previous prime is 97971443. The next prime is 97971473. The reversal of 97971469 is 96417979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95452900 + 2518569 = 9770^2 + 1587^2 .

It is a cyclic number.

It is not a de Polignac number, because 97971469 - 2¹³ = 97963277 is a prime.

It is a super-2 number, since 2×97971469² = 19196817476035922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97971479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48985734 + 48985735.

It is an arithmetic number, because the mean of its divisors is an integer number (48985735).

Almost surely, 2^97971469 is an apocalyptic number.

It is an amenable number.

97971469 is a deficient number, since it is larger than the sum of its proper divisors (1).

97971469 is an equidigital number, since it uses as much as digits as its factorization.

97971469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 857304, while the sum is 52.

The square root of 97971469 is about 9898.0537986010. The cubic root of 97971469 is about 460.9988832449.

The spelling of 97971469 in words is "ninety-seven million, nine hundred seventy-one thousand, four hundred sixty-nine".