269688421 has 8 divisors (see below), whose sum is σ = 273140504. Its totient is φ = 266250240.

The previous prime is 269688407. The next prime is 269688427. The reversal of 269688421 is 124886962.

It can be written as a sum of positive squares in 4 ways, for example, as 236196 + 269452225 = 486^2 + 16415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 269688421 - 2¹⁵ = 269655653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (269688427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38791 + ... + 45211.

It is an arithmetic number, because the mean of its divisors is an integer number (34142563).

Almost surely, 2^269688421 is an apocalyptic number.

It is an amenable number.

269688421 is a deficient number, since it is larger than the sum of its proper divisors (3452083).

269688421 is an equidigital number, since it uses as much as digits as its factorization.

269688421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951.

The product of its digits is 331776, while the sum is 46.

The square root of 269688421 is about 16422.1929412609. The cubic root of 269688421 is about 646.0816903470.

The spelling of 269688421 in words is "two hundred sixty-nine million, six hundred eighty-eight thousand, four hundred twenty-one".