8420916 has 48 divisors (see below), whose sum is σ = 23780736. Its totient is φ = 2264064.

The previous prime is 8420903. The next prime is 8420917. The reversal of 8420916 is 6190248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8420917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1521 + ... + 4376.

It is an arithmetic number, because the mean of its divisors is an integer number (495432).

Almost surely, 2^8420916 is an apocalyptic number.

It is an amenable number.

8420916 is an abundant number, since it is smaller than the sum of its proper divisors (15359820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8420916 is a wasteful number, since it uses less digits than its factorization.

8420916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928 (or 5926 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 8420916 is about 2901.8814586402. The cubic root of 8420916 is about 203.4478533125.

The spelling of 8420916 in words is "eight million, four hundred twenty thousand, nine hundred sixteen".