97278763 has 2 divisors, whose sum is σ = 97278764. Its totient is φ = 97278762.

The previous prime is 97278721. The next prime is 97278781. The reversal of 97278763 is 36787279.

It is a strong prime.

It is an emirp because it is prime and its reverse (36787279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97278763 - 2¹³ = 97270571 is a prime.

It is not a weakly prime, because it can be changed into another prime (97278163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48639381 + 48639382.

It is an arithmetic number, because the mean of its divisors is an integer number (48639382).

Almost surely, 2^97278763 is an apocalyptic number.

97278763 is a deficient number, since it is larger than the sum of its proper divisors (1).

97278763 is an equidigital number, since it uses as much as digits as its factorization.

97278763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The square root of 97278763 is about 9862.9996958329. Note that the first 3 decimals coincide. The cubic root of 97278763 is about 459.9098169143.

The spelling of 97278763 in words is "ninety-seven million, two hundred seventy-eight thousand, seven hundred sixty-three".