8396247420 has 144 divisors (see below), whose sum is σ = 27827785440. Its totient is φ = 2032243200.

The previous prime is 8396247413. The next prime is 8396247449. The reversal of 8396247420 is 247426938.

It is a super-3 number, since 3×8396247420³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1400830 + ... + 1406810.

It is an arithmetic number, because the mean of its divisors is an integer number (193248510).

Almost surely, 2^8396247420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8396247420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13913892720).

8396247420 is an abundant number, since it is smaller than the sum of its proper divisors (19431538020).

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

8396247420 is a wasteful number, since it uses less digits than its factorization.

8396247420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6716 (or 6711 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 8396247420 is about 91631.0396099488. The cubic root of 8396247420 is about 2032.4899615069.

The spelling of 8396247420 in words is "eight billion, three hundred ninety-six million, two hundred forty-seven thousand, four hundred twenty".