63263421 has 12 divisors (see below), whose sum is σ = 98409948. Its totient is φ = 38931264.

The previous prime is 63263419. The next prime is 63263423. The reversal of 63263421 is 12436236.

63263421 is a `hidden beast` number, since 6 + 3 + 2 + 634 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (63263419) and next prime (63263423).

It can be written as a sum of positive squares in 2 ways, for example, as 5336100 + 57927321 = 2310^2 + 7611^2 .

It is not a de Polignac number, because 63263421 - 2¹ = 63263419 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63263423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270240 + ... + 270473.

It is an arithmetic number, because the mean of its divisors is an integer number (8200829).

Almost surely, 2^63263421 is an apocalyptic number.

It is an amenable number.

63263421 is a deficient number, since it is larger than the sum of its proper divisors (35146527).

63263421 is a wasteful number, since it uses less digits than its factorization.

63263421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540732 (or 540729 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 63263421 is about 7953.8305865790. The cubic root of 63263421 is about 398.4595354549.

Adding to 63263421 its reverse (12436236), we get a palindrome (75699657).

The spelling of 63263421 in words is "sixty-three million, two hundred sixty-three thousand, four hundred twenty-one".