978580307 has 2 divisors, whose sum is σ = 978580308. Its totient is φ = 978580306.

The previous prime is 978580271. The next prime is 978580319. The reversal of 978580307 is 703085879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 978580307 - 2⁸ = 978580051 is a prime.

It is not a weakly prime, because it can be changed into another prime (978580387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489290153 + 489290154.

It is an arithmetic number, because the mean of its divisors is an integer number (489290154).

Almost surely, 2^978580307 is an apocalyptic number.

978580307 is a deficient number, since it is larger than the sum of its proper divisors (1).

978580307 is an equidigital number, since it uses as much as digits as its factorization.

978580307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 978580307 is about 31282.2682521584. The cubic root of 978580307 is about 992.8085087625.

The spelling of 978580307 in words is "nine hundred seventy-eight million, five hundred eighty thousand, three hundred seven".