477922693 has 2 divisors, whose sum is σ = 477922694. Its totient is φ = 477922692.

The previous prime is 477922657. The next prime is 477922703. The reversal of 477922693 is 396229774.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 428614209 + 49308484 = 20703^2 + 7022^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-477922693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (477922603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238961346 + 238961347.

It is an arithmetic number, because the mean of its divisors is an integer number (238961347).

Almost surely, 2^477922693 is an apocalyptic number.

It is an amenable number.

477922693 is a deficient number, since it is larger than the sum of its proper divisors (1).

477922693 is an equidigital number, since it uses as much as digits as its factorization.

477922693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The square root of 477922693 is about 21861.4430676477. The cubic root of 477922693 is about 781.8423974271.

It can be divided in two parts, 4779 and 22693, that added together give a palindrome (27472).

The spelling of 477922693 in words is "four hundred seventy-seven million, nine hundred twenty-two thousand, six hundred ninety-three".