10247978 has 8 divisors (see below), whose sum is σ = 16554468. Its totient is φ = 4729824.

The previous prime is 10247971. The next prime is 10247983. The reversal of 10247978 is 87974201.

It can be written as a sum of positive squares in 2 ways, for example, as 10029889 + 218089 = 3167^2 + 467^2 .

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

It is not an unprimeable number, because it can be changed into a prime (10247971) 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 3 ways as a sum of consecutive naturals, for example, 197051 + ... + 197102.

Almost surely, 2^10247978 is an apocalyptic number.

10247978 is a deficient number, since it is larger than the sum of its proper divisors (6306490).

10247978 is a wasteful number, since it uses less digits than its factorization.

10247978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394168.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 10247978 is about 3201.2463197948. The cubic root of 10247978 is about 217.2097895417.

It can be divided in two parts, 102 and 47978, that multiplied together give a triangular number (4893756 = T₃₁₂₈).

The spelling of 10247978 in words is "ten million, two hundred forty-seven thousand, nine hundred seventy-eight".