8420892 has 12 divisors (see below), whose sum is σ = 19648776. Its totient is φ = 2806960.

The previous prime is 8420891. The next prime is 8420897. The reversal of 8420892 is 2980248.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×8420892² = 141822844151328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8420891) 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, 350859 + ... + 350882.

It is an arithmetic number, because the mean of its divisors is an integer number (1637398).

Almost surely, 2^8420892 is an apocalyptic number.

It is an amenable number.

8420892 is an abundant number, since it is smaller than the sum of its proper divisors (11227884).

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

8420892 is a wasteful number, since it uses less digits than its factorization.

8420892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701748 (or 701746 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 8420892 is about 2901.8773233891. The cubic root of 8420892 is about 203.4476600337.

The spelling of 8420892 in words is "eight million, four hundred twenty thousand, eight hundred ninety-two".