8420361 has 4 divisors (see below), whose sum is σ = 11227152. Its totient is φ = 5613572.

The previous prime is 8420351. The next prime is 8420393. The reversal of 8420361 is 1630248.

It is a happy number.

8420361 is nontrivially palindromic in base 11.

8420361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8420361 - 2⁷ = 8420233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8420311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403391 + ... + 1403396.

It is an arithmetic number, because the mean of its divisors is an integer number (2806788).

Almost surely, 2^8420361 is an apocalyptic number.

It is an amenable number.

8420361 is a deficient number, since it is larger than the sum of its proper divisors (2806791).

8420361 is a wasteful number, since it uses less digits than its factorization.

8420361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806790.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 8420361 is about 2901.7858294505. The cubic root of 8420361 is about 203.4433836468.

The spelling of 8420361 in words is "eight million, four hundred twenty thousand, three hundred sixty-one".