420963633 has 24 divisors (see below), whose sum is σ = 617041152. Its totient is φ = 276515808.

The previous prime is 420963611. The next prime is 420963649. The reversal of 420963633 is 336369024.

It is not a de Polignac number, because 420963633 - 2⁸ = 420963377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420963233) 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, 487360 + ... + 488222.

It is an arithmetic number, because the mean of its divisors is an integer number (25710048).

Almost surely, 2^420963633 is an apocalyptic number.

It is an amenable number.

420963633 is a deficient number, since it is larger than the sum of its proper divisors (196077519).

420963633 is a wasteful number, since it uses less digits than its factorization.

420963633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 420963633 is about 20517.3982999795. The cubic root of 420963633 is about 749.4595412994.

The spelling of 420963633 in words is "four hundred twenty million, nine hundred sixty-three thousand, six hundred thirty-three".