8420276 has 6 divisors (see below), whose sum is σ = 14735490. Its totient is φ = 4210136.

The previous prime is 8420273. The next prime is 8420281. The reversal of 8420276 is 6720248.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 524176 = 2810^2 + 724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8420273) 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 as a sum of consecutive naturals, namely, 1052531 + ... + 1052538.

It is an arithmetic number, because the mean of its divisors is an integer number (2455915).

Almost surely, 2^8420276 is an apocalyptic number.

It is an amenable number.

8420276 is a deficient number, since it is larger than the sum of its proper divisors (6315214).

8420276 is a wasteful number, since it uses less digits than its factorization.

8420276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105073 (or 2105071 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 8420276 is about 2901.7711832603. The cubic root of 8420276 is about 203.4426990860.

The spelling of 8420276 in words is "eight million, four hundred twenty thousand, two hundred seventy-six".