28077379 has 8 divisors (see below), whose sum is σ = 30677040. Its totient is φ = 25485600.

The previous prime is 28077367. The next prime is 28077389. The reversal of 28077379 is 97377082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28077379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28077349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7477 + ... + 10585.

It is an arithmetic number, because the mean of its divisors is an integer number (3834630).

Almost surely, 2^28077379 is an apocalyptic number.

28077379 is a deficient number, since it is larger than the sum of its proper divisors (2599661).

28077379 is a wasteful number, since it uses less digits than its factorization.

28077379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3941.

The product of its (nonzero) digits is 148176, while the sum is 43.

The square root of 28077379 is about 5298.8092058499. The cubic root of 28077379 is about 303.9383639757.

The spelling of 28077379 in words is "twenty-eight million, seventy-seven thousand, three hundred seventy-nine".