69041421 has 24 divisors (see below), whose sum is σ = 105661920. Its totient is φ = 43320096.

The previous prime is 69041411. The next prime is 69041443. The reversal of 69041421 is 12414096.

It is a de Polignac number, because none of the positive numbers 2^k-69041421 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 (69041411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26635 + ... + 29111.

It is an arithmetic number, because the mean of its divisors is an integer number (4402580).

Almost surely, 2^69041421 is an apocalyptic number.

It is an amenable number.

69041421 is a deficient number, since it is larger than the sum of its proper divisors (36620499).

69041421 is a wasteful number, since it uses less digits than its factorization.

69041421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665 (or 2662 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 69041421 is about 8309.1167400633. The cubic root of 69041421 is about 410.2386494815.

The spelling of 69041421 in words is "sixty-nine million, forty-one thousand, four hundred twenty-one".