4779775397 has 4 divisors (see below), whose sum is σ = 4780012236. Its totient is φ = 4779538560.

The previous prime is 4779775391. The next prime is 4779775421. The reversal of 4779775397 is 7935779774.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2042497636 + 2737277761 = 45194^2 + 52319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4779775397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4779775391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85004 + ... + 129557.

It is an arithmetic number, because the mean of its divisors is an integer number (1195003059).

Almost surely, 2^4779775397 is an apocalyptic number.

It is an amenable number.

4779775397 is a deficient number, since it is larger than the sum of its proper divisors (236839).

4779775397 is a wasteful number, since it uses less digits than its factorization.

4779775397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236838.

The product of its digits is 81682020, while the sum is 65.

The square root of 4779775397 is about 69135.9197306292. The cubic root of 4779775397 is about 1684.4928160331.

The spelling of 4779775397 in words is "four billion, seven hundred seventy-nine million, seven hundred seventy-five thousand, three hundred ninety-seven".