10978147 has 4 divisors (see below), whose sum is σ = 10985400. Its totient is φ = 10970896.

The previous prime is 10978139. The next prime is 10978183. The reversal of 10978147 is 74187901.

10978147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 74187901 = 41 ⋅1809461.

It is a cyclic number.

It is not a de Polignac number, because 10978147 - 2³ = 10978139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10978117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397 + ... + 4702.

It is an arithmetic number, because the mean of its divisors is an integer number (2746350).

Almost surely, 2^10978147 is an apocalyptic number.

10978147 is a deficient number, since it is larger than the sum of its proper divisors (7253).

10978147 is an equidigital number, since it uses as much as digits as its factorization.

10978147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7252.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 10978147 is about 3313.3286887962. The cubic root of 10978147 is about 222.2506367648.

The spelling of 10978147 in words is "ten million, nine hundred seventy-eight thousand, one hundred forty-seven".