12973478 has 16 divisors (see below), whose sum is σ = 22573824. Its totient is φ = 5476680.

The previous prime is 12973463. The next prime is 12973483. The reversal of 12973478 is 87437921.

It is a super-2 number, since 2×12973478² = 336622262832968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5978 + ... + 7853.

It is an arithmetic number, because the mean of its divisors is an integer number (1410864).

Almost surely, 2^12973478 is an apocalyptic number.

12973478 is a deficient number, since it is larger than the sum of its proper divisors (9600346).

12973478 is a wasteful number, since it uses less digits than its factorization.

12973478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13907.

The product of its digits is 84672, while the sum is 41.

The square root of 12973478 is about 3601.8714580062. The cubic root of 12973478 is about 234.9734570897.

The spelling of 12973478 in words is "twelve million, nine hundred seventy-three thousand, four hundred seventy-eight".