421984753 has 8 divisors (see below), whose sum is σ = 432448128. Its totient is φ = 411583344.

The previous prime is 421984733. The next prime is 421984769. The reversal of 421984753 is 357489124.

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 421984753 - 2⁵ = 421984721 is a prime.

It is a super-2 number, since 2×421984753² = 356142263528942018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421984733) 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 7 ways as a sum of consecutive naturals, for example, 1551 + ... + 29092.

It is an arithmetic number, because the mean of its divisors is an integer number (54056016).

Almost surely, 2^421984753 is an apocalyptic number.

It is an amenable number.

421984753 is a deficient number, since it is larger than the sum of its proper divisors (10463375).

421984753 is a wasteful number, since it uses less digits than its factorization.

421984753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30983.

The product of its digits is 241920, while the sum is 43.

The square root of 421984753 is about 20542.2674746485. The cubic root of 421984753 is about 750.0650331756.

The spelling of 421984753 in words is "four hundred twenty-one million, nine hundred eighty-four thousand, seven hundred fifty-three".