420064501 has 4 divisors (see below), whose sum is σ = 420126400. Its totient is φ = 420002604.

The previous prime is 420064499. The next prime is 420064511. The reversal of 420064501 is 105460024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420064501 - 2¹ = 420064499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420064511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19311 + ... + 34828.

It is an arithmetic number, because the mean of its divisors is an integer number (105031600).

Almost surely, 2^420064501 is an apocalyptic number.

It is an amenable number.

420064501 is a deficient number, since it is larger than the sum of its proper divisors (61899).

420064501 is an equidigital number, since it uses as much as digits as its factorization.

420064501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61898.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 420064501 is about 20495.4751347706. The cubic root of 420064501 is about 748.9255732482.

The spelling of 420064501 in words is "four hundred twenty million, sixty-four thousand, five hundred one".