421077 has 8 divisors (see below), whose sum is σ = 567616. Its totient is φ = 277632.

The previous prime is 421049. The next prime is 421079. The reversal of 421077 is 770124.

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

It is not a de Polignac number, because 421077 - 2¹⁴ = 404693 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 (421079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433 + ... + 1014.

It is an arithmetic number, because the mean of its divisors is an integer number (70952).

2⁴²¹⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

421077 is a deficient number, since it is larger than the sum of its proper divisors (146539).

421077 is a wasteful number, since it uses less digits than its factorization.

421077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 421077 is about 648.9044613809. The cubic root of 421077 is about 74.9526812632.

The spelling of 421077 in words is "four hundred twenty-one thousand, seventy-seven", and thus it is an iban number.