409513487 has 2 divisors, whose sum is σ = 409513488. Its totient is φ = 409513486.

The previous prime is 409513463. The next prime is 409513499. The reversal of 409513487 is 784315904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 409513487 - 2²⁴ = 392736271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409513427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204756743 + 204756744.

It is an arithmetic number, because the mean of its divisors is an integer number (204756744).

Almost surely, 2^409513487 is an apocalyptic number.

409513487 is a deficient number, since it is larger than the sum of its proper divisors (1).

409513487 is an equidigital number, since it uses as much as digits as its factorization.

409513487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 409513487 is about 20236.4395830887. The cubic root of 409513487 is about 742.6019235278.

The spelling of 409513487 in words is "four hundred nine million, five hundred thirteen thousand, four hundred eighty-seven".