3523969 has 2 divisors, whose sum is σ = 3523970. Its totient is φ = 3523968.

The previous prime is 3523963. The next prime is 3523997. The reversal of 3523969 is 9693253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3441025 + 82944 = 1855^2 + 288^2 .

It is a cyclic number.

It is not a de Polignac number, because 3523969 - 2⁷ = 3523841 is a prime.

It is a super-2 number, since 2×3523969² = 24836715025922, which contains 22 as substring.

3523969 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3523963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1761984 + 1761985.

It is an arithmetic number, because the mean of its divisors is an integer number (1761985).

Almost surely, 2^3523969 is an apocalyptic number.

It is an amenable number.

3523969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3523969 is an equidigital number, since it uses as much as digits as its factorization.

3523969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43740, while the sum is 37.

The square root of 3523969 is about 1877.2237479853. The cubic root of 3523969 is about 152.1752508880.

The spelling of 3523969 in words is "three million, five hundred twenty-three thousand, nine hundred sixty-nine".