69938489 has 4 divisors (see below), whose sum is σ = 69964020. Its totient is φ = 69912960.

The previous prime is 69938483. The next prime is 69938501. The reversal of 69938489 is 98483996.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12482089 + 57456400 = 3533^2 + 7580^2 .

It is a cyclic number.

It is not a de Polignac number, because 69938489 - 2¹² = 69934393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69938483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8084 + ... + 14325.

It is an arithmetic number, because the mean of its divisors is an integer number (17491005).

Almost surely, 2^69938489 is an apocalyptic number.

It is an amenable number.

69938489 is a deficient number, since it is larger than the sum of its proper divisors (25531).

69938489 is a wasteful number, since it uses less digits than its factorization.

69938489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25530.

The product of its digits is 3359232, while the sum is 56.

The square root of 69938489 is about 8362.9234720880. The cubic root of 69938489 is about 412.0077782331.

The spelling of 69938489 in words is "sixty-nine million, nine hundred thirty-eight thousand, four hundred eighty-nine".