421063977 has 8 divisors (see below), whose sum is σ = 561812416. Its totient is φ = 280512432.

The previous prime is 421063961. The next prime is 421063987. The reversal of 421063977 is 779360124.

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

It is not a de Polignac number, because 421063977 - 2⁴ = 421063961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421063957) 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, 44158 + ... + 52839.

It is an arithmetic number, because the mean of its divisors is an integer number (70226552).

Almost surely, 2^421063977 is an apocalyptic number.

It is an amenable number.

421063977 is a deficient number, since it is larger than the sum of its proper divisors (140748439).

421063977 is a wasteful number, since it uses less digits than its factorization.

421063977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98447.

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

The square root of 421063977 is about 20519.8434935552. The cubic root of 421063977 is about 749.5190854720.

The spelling of 421063977 in words is "four hundred twenty-one million, sixty-three thousand, nine hundred seventy-seven".