420409877 has 8 divisors (see below), whose sum is σ = 430542336. Its totient is φ = 410326992.

The previous prime is 420409867. The next prime is 420409901. The reversal of 420409877 is 778904024.

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

It is a cyclic number.

It is not a de Polignac number, because 420409877 - 2⁴ = 420409861 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 (420409837) 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, 5063 + ... + 29435.

It is an arithmetic number, because the mean of its divisors is an integer number (53817792).

Almost surely, 2^420409877 is an apocalyptic number.

420409877 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

420409877 is a deficient number, since it is larger than the sum of its proper divisors (10132459).

420409877 is a wasteful number, since it uses less digits than its factorization.

420409877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24787.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 420409877 is about 20503.8990682260. The cubic root of 420409877 is about 749.1307719423.

The spelling of 420409877 in words is "four hundred twenty million, four hundred nine thousand, eight hundred seventy-seven".