3540247 has 2 divisors, whose sum is σ = 3540248. Its totient is φ = 3540246.

The previous prime is 3540223. The next prime is 3540259. The reversal of 3540247 is 7420453.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3540247 - 2¹⁵ = 3507479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3546247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770123 + 1770124.

It is an arithmetic number, because the mean of its divisors is an integer number (1770124).

Almost surely, 2^3540247 is an apocalyptic number.

3540247 is a deficient number, since it is larger than the sum of its proper divisors (1).

3540247 is an equidigital number, since it uses as much as digits as its factorization.

3540247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 3540247 is about 1881.5544105872. The cubic root of 3540247 is about 152.4092015258.

The spelling of 3540247 in words is "three million, five hundred forty thousand, two hundred forty-seven".