69412869 has 10 divisors (see below), whose sum is σ = 103690950. Its totient is φ = 46275192.

The previous prime is 69412867. The next prime is 69412883. The reversal of 69412869 is 96821496.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 59490369 + 9922500 = 7713^2 + 3150^2 .

It is not a de Polignac number, because 69412869 - 2¹ = 69412867 is a prime.

It is a super-2 number, since 2×69412869² = 9636292765622322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69412867) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 428394 + ... + 428555.

It is an arithmetic number, because the mean of its divisors is an integer number (10369095).

Almost surely, 2^69412869 is an apocalyptic number.

It is an amenable number.

69412869 is a deficient number, since it is larger than the sum of its proper divisors (34278081).

69412869 is an equidigital number, since it uses as much as digits as its factorization.

69412869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856961 (or 856952 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 69412869 is about 8331.4385912638. The cubic root of 69412869 is about 410.9730388836.

The spelling of 69412869 in words is "sixty-nine million, four hundred twelve thousand, eight hundred sixty-nine".