421612653 has 16 divisors (see below), whose sum is σ = 700862976. Its totient is φ = 219019440.

The previous prime is 421612619. The next prime is 421612657. The reversal of 421612653 is 356216124.

It is not a de Polignac number, because 421612653 - 2⁶ = 421612589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421612653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421612657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912351 + ... + 912812.

It is an arithmetic number, because the mean of its divisors is an integer number (43803936).

Almost surely, 2^421612653 is an apocalyptic number.

It is an amenable number.

421612653 is a deficient number, since it is larger than the sum of its proper divisors (279250323).

421612653 is a wasteful number, since it uses less digits than its factorization.

421612653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825184.

The product of its digits is 8640, while the sum is 30.

The square root of 421612653 is about 20533.2085412875. The cubic root of 421612653 is about 749.8445028742.

Adding to 421612653 its reverse (356216124), we get a palindrome (777828777).

The spelling of 421612653 in words is "four hundred twenty-one million, six hundred twelve thousand, six hundred fifty-three".