7872619 has 2 divisors, whose sum is σ = 7872620. Its totient is φ = 7872618.

The previous prime is 7872611. The next prime is 7872629. The reversal of 7872619 is 9162787.

It is a weak prime.

It is an emirp because it is prime and its reverse (9162787) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7872619 - 2³ = 7872611 is a prime.

It is a super-2 number, since 2×7872619² = 123956259838322, which contains 22 as substring.

7872619 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7872611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3936309 + 3936310.

It is an arithmetic number, because the mean of its divisors is an integer number (3936310).

Almost surely, 2^7872619 is an apocalyptic number.

7872619 is a deficient number, since it is larger than the sum of its proper divisors (1).

7872619 is an equidigital number, since it uses as much as digits as its factorization.

7872619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 40.

The square root of 7872619 is about 2805.8187753310. The cubic root of 7872619 is about 198.9328072939.

The spelling of 7872619 in words is "seven million, eight hundred seventy-two thousand, six hundred nineteen".