99406469 has 2 divisors, whose sum is σ = 99406470. Its totient is φ = 99406468.

The previous prime is 99406459. The next prime is 99406481. The reversal of 99406469 is 96460499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98704225 + 702244 = 9935^2 + 838^2 .

It is a cyclic number.

It is not a de Polignac number, because 99406469 - 2⁴ = 99406453 is a prime.

It is a super-2 number, since 2×99406469² = 19763292158095922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99406459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49703234 + 49703235.

It is an arithmetic number, because the mean of its divisors is an integer number (49703235).

Almost surely, 2^99406469 is an apocalyptic number.

It is an amenable number.

99406469 is a deficient number, since it is larger than the sum of its proper divisors (1).

99406469 is an equidigital number, since it uses as much as digits as its factorization.

99406469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 99406469 is about 9970.2792839519. The cubic root of 99406469 is about 463.2387515766.

The spelling of 99406469 in words is "ninety-nine million, four hundred six thousand, four hundred sixty-nine".