472619857 has 2 divisors, whose sum is σ = 472619858. Its totient is φ = 472619856.

The previous prime is 472619783. The next prime is 472619863. The reversal of 472619857 is 758916274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413268241 + 59351616 = 20329^2 + 7704^2 .

It is a cyclic number.

It is not a de Polignac number, because 472619857 - 2⁷ = 472619729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 472619857.

It is not a weakly prime, because it can be changed into another prime (472619867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236309928 + 236309929.

It is an arithmetic number, because the mean of its divisors is an integer number (236309929).

Almost surely, 2^472619857 is an apocalyptic number.

It is an amenable number.

472619857 is a deficient number, since it is larger than the sum of its proper divisors (1).

472619857 is an equidigital number, since it uses as much as digits as its factorization.

472619857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 49.

The square root of 472619857 is about 21739.8219173939. The cubic root of 472619857 is about 778.9399675686.

The spelling of 472619857 in words is "four hundred seventy-two million, six hundred nineteen thousand, eight hundred fifty-seven".