978337 has 2 divisors, whose sum is σ = 978338. Its totient is φ = 978336.

The previous prime is 978323. The next prime is 978343. The reversal of 978337 is 733879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665856 + 312481 = 816^2 + 559^2 .

It is an emirp because it is prime and its reverse (733879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 978337 - 2⁷ = 978209 is a prime.

It is a Chen prime.

978337 is a lucky number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 978296 and 978305.

It is not a weakly prime, because it can be changed into another prime (978347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489168 + 489169.

It is an arithmetic number, because the mean of its divisors is an integer number (489169).

2⁹⁷⁸³³⁷ is an apocalyptic number.

It is an amenable number.

978337 is a deficient number, since it is larger than the sum of its proper divisors (1).

978337 is an equidigital number, since it uses as much as digits as its factorization.

978337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 37.

The square root of 978337 is about 989.1091951852. The cubic root of 978337 is about 99.2726220411.

The spelling of 978337 in words is "nine hundred seventy-eight thousand, three hundred thirty-seven".