11597978 has 16 divisors (see below), whose sum is σ = 21052224. Its totient is φ = 4678080.

The previous prime is 11597977. The next prime is 11598017. The reversal of 11597978 is 87979511.

11597978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11597977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24128 + ... + 24603.

It is an arithmetic number, because the mean of its divisors is an integer number (1315764).

Almost surely, 2^11597978 is an apocalyptic number.

11597978 is a deficient number, since it is larger than the sum of its proper divisors (9454246).

11597978 is a wasteful number, since it uses less digits than its factorization.

11597978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48757.

The product of its digits is 158760, while the sum is 47.

The square root of 11597978 is about 3405.5804204276. The cubic root of 11597978 is about 226.3570855368.

The spelling of 11597978 in words is "eleven million, five hundred ninety-seven thousand, nine hundred seventy-eight".