340033987 has 2 divisors, whose sum is σ = 340033988. Its totient is φ = 340033986.

The previous prime is 340033931. The next prime is 340033997. The reversal of 340033987 is 789330043.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340033987 is a prime.

It is a super-2 number, since 2×340033987² = 231246224630232338, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340033907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170016993 + 170016994.

It is an arithmetic number, because the mean of its divisors is an integer number (170016994).

Almost surely, 2^340033987 is an apocalyptic number.

340033987 is a deficient number, since it is larger than the sum of its proper divisors (1).

340033987 is an equidigital number, since it uses as much as digits as its factorization.

340033987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 340033987 is about 18440.0104934894. The cubic root of 340033987 is about 697.9764601274.

The spelling of 340033987 in words is "three hundred forty million, thirty-three thousand, nine hundred eighty-seven".