3549967 has 2 divisors, whose sum is σ = 3549968. Its totient is φ = 3549966.

The previous prime is 3549947. The next prime is 3549983. The reversal of 3549967 is 7699453.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3549967 - 2⁷ = 3549839 is a prime.

It is a d-powerful number, because it can be written as 3¹³ + 5⁹ + 4³ + 9 + 9 + 6² + 7⁴ .

3549967 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3549947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1774983 + 1774984.

It is an arithmetic number, because the mean of its divisors is an integer number (1774984).

Almost surely, 2^3549967 is an apocalyptic number.

3549967 is a deficient number, since it is larger than the sum of its proper divisors (1).

3549967 is an equidigital number, since it uses as much as digits as its factorization.

3549967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 43.

The square root of 3549967 is about 1884.1356108306. The cubic root of 3549967 is about 152.5485575014.

The spelling of 3549967 in words is "three million, five hundred forty-nine thousand, nine hundred sixty-seven".