69425421 has 16 divisors (see below), whose sum is σ = 100356480. Its totient is φ = 42436800.

The previous prime is 69425417. The next prime is 69425441. The reversal of 69425421 is 12452496.

It is not a de Polignac number, because 69425421 - 2² = 69425417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69425401) 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 15 ways as a sum of consecutive naturals, for example, 6 + ... + 11783.

It is an arithmetic number, because the mean of its divisors is an integer number (6272280).

Almost surely, 2^69425421 is an apocalyptic number.

It is an amenable number.

69425421 is a deficient number, since it is larger than the sum of its proper divisors (30931059).

69425421 is a wasteful number, since it uses less digits than its factorization.

69425421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11956.

The product of its digits is 17280, while the sum is 33.

The square root of 69425421 is about 8332.1918484874. The cubic root of 69425421 is about 410.9978096153.

The spelling of 69425421 in words is "sixty-nine million, four hundred twenty-five thousand, four hundred twenty-one".