8380019 has 4 divisors (see below), whose sum is σ = 8606544. Its totient is φ = 8153496.

The previous prime is 8379961. The next prime is 8380037. The reversal of 8380019 is 9100838.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8380019 is a prime.

It is a super-2 number, since 2×8380019² = 140449436880722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8379973 and 8380000.

It is not an unprimeable number, because it can be changed into a prime (8380039) 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, 113207 + ... + 113280.

It is an arithmetic number, because the mean of its divisors is an integer number (2151636).

Almost surely, 2^8380019 is an apocalyptic number.

8380019 is a deficient number, since it is larger than the sum of its proper divisors (226525).

8380019 is a wasteful number, since it uses less digits than its factorization.

8380019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226524.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 8380019 is about 2894.8262469447. The cubic root of 8380019 is about 203.1179639062.

The spelling of 8380019 in words is "eight million, three hundred eighty thousand, nineteen".