477699689 has 2 divisors, whose sum is σ = 477699690. Its totient is φ = 477699688.

The previous prime is 477699679. The next prime is 477699697. The reversal of 477699689 is 986996774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270109225 + 207590464 = 16435^2 + 14408^2 .

It is a cyclic number.

It is not a de Polignac number, because 477699689 - 2⁸ = 477699433 is a prime.

It is not a weakly prime, because it can be changed into another prime (477699679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238849844 + 238849845.

It is an arithmetic number, because the mean of its divisors is an integer number (238849845).

Almost surely, 2^477699689 is an apocalyptic number.

It is an amenable number.

477699689 is a deficient number, since it is larger than the sum of its proper divisors (1).

477699689 is an equidigital number, since it uses as much as digits as its factorization.

477699689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41150592, while the sum is 65.

The square root of 477699689 is about 21856.3420773010. The cubic root of 477699689 is about 781.7207730793.

The spelling of 477699689 in words is "four hundred seventy-seven million, six hundred ninety-nine thousand, six hundred eighty-nine".