69987419 has 6 divisors (see below), whose sum is σ = 74346804. Its totient is φ = 65870240.

The previous prime is 69987403. The next prime is 69987427. The reversal of 69987419 is 91478996.

It is a happy number.

It is not a de Polignac number, because 69987419 - 2⁴ = 69987403 is a prime.

It is a super-2 number, since 2×69987419² = 9796477636563122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69987439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120797 + ... + 121374.

It is an arithmetic number, because the mean of its divisors is an integer number (12391134).

Almost surely, 2^69987419 is an apocalyptic number.

69987419 is a deficient number, since it is larger than the sum of its proper divisors (4359385).

69987419 is a wasteful number, since it uses less digits than its factorization.

69987419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242205 (or 242188 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 69987419 is about 8365.8483729984. The cubic root of 69987419 is about 412.1038380775.

The spelling of 69987419 in words is "sixty-nine million, nine hundred eighty-seven thousand, four hundred nineteen".