69078213 has 6 divisors (see below), whose sum is σ = 99779654. Its totient is φ = 46052136.

The previous prime is 69078193. The next prime is 69078257. The reversal of 69078213 is 31287096.

It can be written as a sum of positive squares in only one way, i.e., 63011844 + 6066369 = 7938^2 + 2463^2 .

It is not a de Polignac number, because 69078213 - 2⁵ = 69078181 is a prime.

It is a super-2 number, since 2×69078213² = 9543599022546738, 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 (69078313) 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, 3837670 + ... + 3837687.

Almost surely, 2^69078213 is an apocalyptic number.

It is an amenable number.

69078213 is a deficient number, since it is larger than the sum of its proper divisors (30701441).

69078213 is a wasteful number, since it uses less digits than its factorization.

69078213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7675363 (or 7675360 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 69078213 is about 8311.3303989193. The cubic root of 69078213 is about 410.3115082565.

The spelling of 69078213 in words is "sixty-nine million, seventy-eight thousand, two hundred thirteen".