477072779 has 4 divisors (see below), whose sum is σ = 481294776. Its totient is φ = 472850784.

The previous prime is 477072773. The next prime is 477072803. The reversal of 477072779 is 977270774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 977270774 = 2 ⋅488635387.

It is a cyclic number.

It is not a de Polignac number, because 477072779 - 2²⁸ = 208637323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (477072773) 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, 2110829 + ... + 2111054.

It is an arithmetic number, because the mean of its divisors is an integer number (120323694).

Almost surely, 2^477072779 is an apocalyptic number.

477072779 is a deficient number, since it is larger than the sum of its proper divisors (4221997).

477072779 is a wasteful number, since it uses less digits than its factorization.

477072779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221996.

The product of its (nonzero) digits is 1210104, while the sum is 50.

The square root of 477072779 is about 21841.9957650394. The cubic root of 477072779 is about 781.3786591820.

The spelling of 477072779 in words is "four hundred seventy-seven million, seventy-two thousand, seven hundred seventy-nine".