477492409 has 2 divisors, whose sum is σ = 477492410. Its totient is φ = 477492408.

The previous prime is 477492373. The next prime is 477492419. The reversal of 477492409 is 904294774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 359292025 + 118200384 = 18955^2 + 10872^2 .

It is a cyclic number.

It is not a de Polignac number, because 477492409 - 2¹⁷ = 477361337 is a prime.

It is not a weakly prime, because it can be changed into another prime (477492419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238746204 + 238746205.

It is an arithmetic number, because the mean of its divisors is an integer number (238746205).

Almost surely, 2^477492409 is an apocalyptic number.

It is an amenable number.

477492409 is a deficient number, since it is larger than the sum of its proper divisors (1).

477492409 is an equidigital number, since it uses as much as digits as its factorization.

477492409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 477492409 is about 21851.5996897252. The cubic root of 477492409 is about 781.6076905105.

The spelling of 477492409 in words is "four hundred seventy-seven million, four hundred ninety-two thousand, four hundred nine".