69987438 has 24 divisors (see below), whose sum is σ = 152310600. Its totient is φ = 23225904.

The previous prime is 69987433. The next prime is 69987439. The reversal of 69987438 is 83478996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69987433) 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, 4368 + ... + 12611.

It is an arithmetic number, because the mean of its divisors is an integer number (6346275).

Almost surely, 2^69987438 is an apocalyptic number.

69987438 is an abundant number, since it is smaller than the sum of its proper divisors (82323162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69987438 is a wasteful number, since it uses less digits than its factorization.

69987438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17216 (or 17213 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 69987438 is about 8365.8495085676. The cubic root of 69987438 is about 412.1038753698.

The spelling of 69987438 in words is "sixty-nine million, nine hundred eighty-seven thousand, four hundred thirty-eight".