475742077 has 4 divisors (see below), whose sum is σ = 476358300. Its totient is φ = 475125856.

The previous prime is 475742063. The next prime is 475742081. The reversal of 475742077 is 770247574.

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 95531076 + 380211001 = 9774^2 + 19499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-475742077 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 (475742177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306952 + ... + 308497.

It is an arithmetic number, because the mean of its divisors is an integer number (119089575).

Almost surely, 2^475742077 is an apocalyptic number.

It is an amenable number.

475742077 is a deficient number, since it is larger than the sum of its proper divisors (616223).

475742077 is an equidigital number, since it uses as much as digits as its factorization.

475742077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616222.

The product of its (nonzero) digits is 384160, while the sum is 43.

The square root of 475742077 is about 21811.5124876749. The cubic root of 475742077 is about 780.6514812417.

The spelling of 475742077 in words is "four hundred seventy-five million, seven hundred forty-two thousand, seventy-seven".