770220247 has 2 divisors, whose sum is σ = 770220248. Its totient is φ = 770220246.

The previous prime is 770220181. The next prime is 770220293. The reversal of 770220247 is 742022077.

It is a strong prime.

It is an emirp because it is prime and its reverse (742022077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 770220247 - 2¹⁵ = 770187479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (770223247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385110123 + 385110124.

It is an arithmetic number, because the mean of its divisors is an integer number (385110124).

Almost surely, 2^770220247 is an apocalyptic number.

770220247 is a deficient number, since it is larger than the sum of its proper divisors (1).

770220247 is an equidigital number, since it uses as much as digits as its factorization.

770220247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 770220247 is about 27752.8421427428. The cubic root of 770220247 is about 916.6530270735.

The spelling of 770220247 in words is "seven hundred seventy million, two hundred twenty thousand, two hundred forty-seven".