420779361 has 8 divisors (see below), whose sum is σ = 561149920. Its totient is φ = 280464192.

The previous prime is 420779353. The next prime is 420779407. The reversal of 420779361 is 163977024.

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

It is not a de Polignac number, because 420779361 - 2³ = 420779353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420779341) 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, 9510 + ... + 30528.

It is an arithmetic number, because the mean of its divisors is an integer number (70143740).

Almost surely, 2^420779361 is an apocalyptic number.

It is an amenable number.

420779361 is a deficient number, since it is larger than the sum of its proper divisors (140370559).

420779361 is a wasteful number, since it uses less digits than its factorization.

420779361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27695.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 420779361 is about 20512.9071806022. The cubic root of 420779361 is about 749.3501695676.

The spelling of 420779361 in words is "four hundred twenty million, seven hundred seventy-nine thousand, three hundred sixty-one".