5428978 has 8 divisors (see below), whose sum is σ = 8154972. Its totient is φ = 2710656.

The previous prime is 5428961. The next prime is 5428981. The reversal of 5428978 is 8798245.

It can be written as a sum of positive squares in 2 ways, for example, as 4190209 + 1238769 = 2047^2 + 1113^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 426 + ... + 3322.

Almost surely, 2^5428978 is an apocalyptic number.

5428978 is a deficient number, since it is larger than the sum of its proper divisors (2725994).

5428978 is a wasteful number, since it uses less digits than its factorization.

5428978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3836.

The product of its digits is 161280, while the sum is 43.

The square root of 5428978 is about 2330.0167381373. The cubic root of 5428978 is about 175.7543275160.

The spelling of 5428978 in words is "five million, four hundred twenty-eight thousand, nine hundred seventy-eight".