69990489 has 12 divisors (see below), whose sum is σ = 101608000. Its totient is φ = 46424664.

The previous prime is 69990409. The next prime is 69990491. The reversal of 69990489 is 98409996.

It is a happy number.

It is not a de Polignac number, because 69990489 - 2⁸ = 69990233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69990409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17749 + ... + 21330.

Almost surely, 2^69990489 is an apocalyptic number.

It is an amenable number.

69990489 is a deficient number, since it is larger than the sum of its proper divisors (31617511).

69990489 is a wasteful number, since it uses less digits than its factorization.

69990489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39284 (or 39281 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The square root of 69990489 is about 8366.0318550673. The cubic root of 69990489 is about 412.1098636380.

The spelling of 69990489 in words is "sixty-nine million, nine hundred ninety thousand, four hundred eighty-nine".