69489261 has 6 divisors (see below), whose sum is σ = 100373390. Its totient is φ = 46326168.

The previous prime is 69489257. The next prime is 69489283. The reversal of 69489261 is 16298496.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60933636 + 8555625 = 7806^2 + 2925^2 .

It is not a de Polignac number, because 69489261 - 2² = 69489257 is a prime.

It is a super-2 number, since 2×69489261² = 9657514788652242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69489241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3860506 + ... + 3860523.

Almost surely, 2^69489261 is an apocalyptic number.

It is an amenable number.

69489261 is a deficient number, since it is larger than the sum of its proper divisors (30884129).

69489261 is a wasteful number, since it uses less digits than its factorization.

69489261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7721035 (or 7721032 counting only the distinct ones).

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

The square root of 69489261 is about 8336.0218929655. The cubic root of 69489261 is about 411.1237484117.

The spelling of 69489261 in words is "sixty-nine million, four hundred eighty-nine thousand, two hundred sixty-one".