978041417 has 2 divisors, whose sum is σ = 978041418. Its totient is φ = 978041416.

The previous prime is 978041287. The next prime is 978041431. The reversal of 978041417 is 714140879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 761980816 + 216060601 = 27604^2 + 14699^2 .

It is a cyclic number.

It is not a de Polignac number, because 978041417 - 2²⁸ = 709605961 is a prime.

It is a super-3 number, since 3×978041417³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (978041437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489020708 + 489020709.

It is an arithmetic number, because the mean of its divisors is an integer number (489020709).

Almost surely, 2^978041417 is an apocalyptic number.

It is an amenable number.

978041417 is a deficient number, since it is larger than the sum of its proper divisors (1).

978041417 is an equidigital number, since it uses as much as digits as its factorization.

978041417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 978041417 is about 31273.6537200245. The cubic root of 978041417 is about 992.6262335448.

The spelling of 978041417 in words is "nine hundred seventy-eight million, forty-one thousand, four hundred seventeen".