5615978 has 8 divisors (see below), whose sum is σ = 8437440. Its totient is φ = 2803500.

The previous prime is 5615977. The next prime is 5616011. The reversal of 5615978 is 8795165.

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 (5615977) 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, 368 + ... + 3371.

It is an arithmetic number, because the mean of its divisors is an integer number (1054680).

Almost surely, 2^5615978 is an apocalyptic number.

5615978 is a deficient number, since it is larger than the sum of its proper divisors (2821462).

5615978 is a wasteful number, since it uses less digits than its factorization.

5615978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492.

The product of its digits is 75600, while the sum is 41.

The square root of 5615978 is about 2369.8054772491. The cubic root of 5615978 is about 177.7495319997.

The spelling of 5615978 in words is "five million, six hundred fifteen thousand, nine hundred seventy-eight".