8420741 has 4 divisors (see below), whose sum is σ = 9623712. Its totient is φ = 7217772.

The previous prime is 8420681. The next prime is 8420749. The reversal of 8420741 is 1470248.

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 8420741 - 2⁶ = 8420677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8420741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8420749) 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, 601475 + ... + 601488.

It is an arithmetic number, because the mean of its divisors is an integer number (2405928).

Almost surely, 2^8420741 is an apocalyptic number.

It is an amenable number.

8420741 is a deficient number, since it is larger than the sum of its proper divisors (1202971).

8420741 is a wasteful number, since it uses less digits than its factorization.

8420741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202970.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 8420741 is about 2901.8513056323. The cubic root of 8420741 is about 203.4464439796.

Adding to 8420741 its reverse (1470248), we get a palindrome (9890989).

It can be divided in two parts, 84207 and 41, that added together give a palindrome (84248).

The spelling of 8420741 in words is "eight million, four hundred twenty thousand, seven hundred forty-one".