2078749 has 8 divisors (see below), whose sum is σ = 2201760. Its totient is φ = 1959216.

The previous prime is 2078731. The next prime is 2078753. The reversal of 2078749 is 9478702.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2078749 - 2⁷ = 2078621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078719) 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, 414 + ... + 2080.

It is an arithmetic number, because the mean of its divisors is an integer number (275220).

2^2078749 is an apocalyptic number.

2078749 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2078749 is a deficient number, since it is larger than the sum of its proper divisors (123011).

2078749 is a wasteful number, since it uses less digits than its factorization.

2078749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 2078749 is about 1441.7867387377. The cubic root of 2078749 is about 127.6244894575.

The spelling of 2078749 in words is "two million, seventy-eight thousand, seven hundred forty-nine".