3078978 has 16 divisors (see below), whose sum is σ = 7037760. Its totient is φ = 879696.

The previous prime is 3078973. The next prime is 3078983. The reversal of 3078978 is 8798703.

It is an interprime number because it is at equal distance from previous prime (3078973) and next prime (3078983).

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 73309 = 3078978 / (3 + 0 + 7 + 8 + 9 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (3078973) 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, 36613 + ... + 36696.

It is an arithmetic number, because the mean of its divisors is an integer number (439860).

Almost surely, 2^3078978 is an apocalyptic number.

3078978 is an abundant number, since it is smaller than the sum of its proper divisors (3958782).

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

3078978 is a wasteful number, since it uses less digits than its factorization.

3078978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73321.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 3078978 is about 1754.7016840477. The cubic root of 3078978 is about 145.4796324864.

The spelling of 3078978 in words is "three million, seventy-eight thousand, nine hundred seventy-eight".