427221364 has 6 divisors (see below), whose sum is σ = 747637394. Its totient is φ = 213610680.

The previous prime is 427221349. The next prime is 427221367. The reversal of 427221364 is 463122724.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 274896400 + 152324964 = 16580^2 + 12342^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427221367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53402667 + ... + 53402674.

Almost surely, 2^427221364 is an apocalyptic number.

It is an amenable number.

427221364 is a deficient number, since it is larger than the sum of its proper divisors (320416030).

427221364 is a wasteful number, since it uses less digits than its factorization.

427221364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106805345 (or 106805343 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 427221364 is about 20669.3339031523. Note that the first 3 decimals coincide. The cubic root of 427221364 is about 753.1549256866.

The spelling of 427221364 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, three hundred sixty-four".