340432487 has 2 divisors, whose sum is σ = 340432488. Its totient is φ = 340432486.

The previous prime is 340432459. The next prime is 340432493. The reversal of 340432487 is 784234043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340432487 - 2⁶ = 340432423 is a prime.

It is a Chen prime.

It is equal to p_18316781 and since 340432487 and 18316781 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340432447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170216243 + 170216244.

It is an arithmetic number, because the mean of its divisors is an integer number (170216244).

Almost surely, 2^340432487 is an apocalyptic number.

340432487 is a deficient number, since it is larger than the sum of its proper divisors (1).

340432487 is an equidigital number, since it uses as much as digits as its factorization.

340432487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 35.

The square root of 340432487 is about 18450.8126379301. The cubic root of 340432487 is about 698.2490162489.

The spelling of 340432487 in words is "three hundred forty million, four hundred thirty-two thousand, four hundred eighty-seven".