420597479 has 8 divisors (see below), whose sum is σ = 422396208. Its totient is φ = 418803520.

The previous prime is 420597461. The next prime is 420597503. The reversal of 420597479 is 974795024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420597479 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 (420597409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382859 + ... + 383955.

It is an arithmetic number, because the mean of its divisors is an integer number (52799526).

Almost surely, 2^420597479 is an apocalyptic number.

420597479 is a deficient number, since it is larger than the sum of its proper divisors (1798729).

420597479 is a wasteful number, since it uses less digits than its factorization.

420597479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 420597479 is about 20508.4733464000. The cubic root of 420597479 is about 749.2421850651.

The spelling of 420597479 in words is "four hundred twenty million, five hundred ninety-seven thousand, four hundred seventy-nine".