5171978 has 32 divisors (see below), whose sum is σ = 9704448. Its totient is φ = 2016000.

The previous prime is 5171963. The next prime is 5171981. The reversal of 5171978 is 8791715.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7028 + ... + 7728.

It is an arithmetic number, because the mean of its divisors is an integer number (303264).

Almost surely, 2^5171978 is an apocalyptic number.

5171978 is a deficient number, since it is larger than the sum of its proper divisors (4532470).

5171978 is a wasteful number, since it uses less digits than its factorization.

5171978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758.

The product of its digits is 17640, while the sum is 38.

The square root of 5171978 is about 2274.1983202878. The cubic root of 5171978 is about 172.9360584307.

The spelling of 5171978 in words is "five million, one hundred seventy-one thousand, nine hundred seventy-eight".