421241777 has 12 divisors (see below), whose sum is σ = 472875648. Its totient is φ = 374794200.

The previous prime is 421241767. The next prime is 421241789. The reversal of 421241777 is 777142124.

It is not a de Polignac number, because 421241777 - 2⁶ = 421241713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421241747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31349 + ... + 42722.

It is an arithmetic number, because the mean of its divisors is an integer number (39406304).

Almost surely, 2^421241777 is an apocalyptic number.

421241777 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

421241777 is a deficient number, since it is larger than the sum of its proper divisors (51633871).

421241777 is a wasteful number, since it uses less digits than its factorization.

421241777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74140 (or 74129 counting only the distinct ones).

The product of its digits is 21952, while the sum is 35.

The square root of 421241777 is about 20524.1754280166. The cubic root of 421241777 is about 749.6245688407.

The spelling of 421241777 in words is "four hundred twenty-one million, two hundred forty-one thousand, seven hundred seventy-seven".