227409421 has 4 divisors (see below), whose sum is σ = 229045600. Its totient is φ = 225773244.

The previous prime is 227409401. The next prime is 227409431. The reversal of 227409421 is 124904722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124904722 = 2 ⋅62452361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227409421 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 (227409401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817881 + ... + 818158.

It is an arithmetic number, because the mean of its divisors is an integer number (57261400).

Almost surely, 2^227409421 is an apocalyptic number.

It is an amenable number.

227409421 is a deficient number, since it is larger than the sum of its proper divisors (1636179).

227409421 is a wasteful number, since it uses less digits than its factorization.

227409421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636178.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 227409421 is about 15080.1001654498. The cubic root of 227409421 is about 610.3835454068.

The spelling of 227409421 in words is "two hundred twenty-seven million, four hundred nine thousand, four hundred twenty-one".