69048409 has 2 divisors, whose sum is σ = 69048410. Its totient is φ = 69048408.

The previous prime is 69048367. The next prime is 69048431. The reversal of 69048409 is 90484096.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43191184 + 25857225 = 6572^2 + 5085^2 .

It is a cyclic number.

It is not a de Polignac number, because 69048409 - 2¹⁹ = 68524121 is a prime.

It is not a weakly prime, because it can be changed into another prime (69048479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34524204 + 34524205.

It is an arithmetic number, because the mean of its divisors is an integer number (34524205).

Almost surely, 2^69048409 is an apocalyptic number.

It is an amenable number.

69048409 is a deficient number, since it is larger than the sum of its proper divisors (1).

69048409 is an equidigital number, since it uses as much as digits as its factorization.

69048409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 69048409 is about 8309.5372313986. The cubic root of 69048409 is about 410.2524897285.

The spelling of 69048409 in words is "sixty-nine million, forty-eight thousand, four hundred nine".