472977641 has 2 divisors, whose sum is σ = 472977642. Its totient is φ = 472977640.

The previous prime is 472977629. The next prime is 472977643. The reversal of 472977641 is 146779274.

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., 450925225 + 22052416 = 21235^2 + 4696^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472977641 is a prime.

Together with 472977643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (472977643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236488820 + 236488821.

It is an arithmetic number, because the mean of its divisors is an integer number (236488821).

Almost surely, 2^472977641 is an apocalyptic number.

It is an amenable number.

472977641 is a deficient number, since it is larger than the sum of its proper divisors (1).

472977641 is an equidigital number, since it uses as much as digits as its factorization.

472977641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 47.

The square root of 472977641 is about 21748.0491308991. The cubic root of 472977641 is about 779.1364764240.

The spelling of 472977641 in words is "four hundred seventy-two million, nine hundred seventy-seven thousand, six hundred forty-one".