420796477 has 8 divisors (see below), whose sum is σ = 462202560. Its totient is φ = 381316320.

The previous prime is 420796457. The next prime is 420796501. The reversal of 420796477 is 774697024.

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

It is not a de Polignac number, because 420796477 - 2⁷ = 420796349 is a prime.

It is a super-2 number, since 2×420796477² = 354139350111223058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420796417) 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, 481024 + ... + 481897.

It is an arithmetic number, because the mean of its divisors is an integer number (57775320).

Almost surely, 2^420796477 is an apocalyptic number.

It is an amenable number.

420796477 is a deficient number, since it is larger than the sum of its proper divisors (41406083).

420796477 is a wasteful number, since it uses less digits than its factorization.

420796477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962963.

The product of its (nonzero) digits is 592704, while the sum is 46.

The square root of 420796477 is about 20513.3243770970. The cubic root of 420796477 is about 749.3603298438.

The spelling of 420796477 in words is "four hundred twenty million, seven hundred ninety-six thousand, four hundred seventy-seven".