477742693 has 2 divisors, whose sum is σ = 477742694. Its totient is φ = 477742692.

The previous prime is 477742691. The next prime is 477742711. The reversal of 477742693 is 396247774.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386004609 + 91738084 = 19647^2 + 9578^2 .

It is a cyclic number.

It is not a de Polignac number, because 477742693 - 2¹ = 477742691 is a prime.

Together with 477742691, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477742691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238871346 + 238871347.

It is an arithmetic number, because the mean of its divisors is an integer number (238871347).

Almost surely, 2^477742693 is an apocalyptic number.

It is an amenable number.

477742693 is a deficient number, since it is larger than the sum of its proper divisors (1).

477742693 is an equidigital number, since it uses as much as digits as its factorization.

477742693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 49.

The square root of 477742693 is about 21857.3258428381. The cubic root of 477742693 is about 781.7442300141.

The spelling of 477742693 in words is "four hundred seventy-seven million, seven hundred forty-two thousand, six hundred ninety-three".