3551697 has 6 divisors (see below), whose sum is σ = 5130242. Its totient is φ = 2367792.

The previous prime is 3551687. The next prime is 3551699. The reversal of 3551697 is 7961553.

It is a happy number.

3551697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2461761 + 1089936 = 1569^2 + 1044^2 .

It is not a de Polignac number, because 3551697 - 2⁸ = 3551441 is a prime.

It is a super-2 number, since 2×3551697² = 25229103159618, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (3551699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197308 + ... + 197325.

Almost surely, 2^3551697 is an apocalyptic number.

It is an amenable number.

3551697 is a deficient number, since it is larger than the sum of its proper divisors (1578545).

3551697 is a wasteful number, since it uses less digits than its factorization.

3551697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394639 (or 394636 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 3551697 is about 1884.5946513773. The cubic root of 3551697 is about 152.5733338957.

The spelling of 3551697 in words is "three million, five hundred fifty-one thousand, six hundred ninety-seven".