3617491 has 2 divisors, whose sum is σ = 3617492. Its totient is φ = 3617490.

The previous prime is 3617479. The next prime is 3617501. The reversal of 3617491 is 1947163.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3617491 - 2⁷ = 3617363 is a prime.

It is a super-2 number, since 2×3617491² = 26172482270162, which contains 22 as substring.

3617491 is a lucky number.

It is equal to p₂₅₇₉₂₆ and since 3617491 and 257926 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3617401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1808745 + 1808746.

It is an arithmetic number, because the mean of its divisors is an integer number (1808746).

Almost surely, 2^3617491 is an apocalyptic number.

3617491 is a deficient number, since it is larger than the sum of its proper divisors (1).

3617491 is an equidigital number, since it uses as much as digits as its factorization.

3617491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 3617491 is about 1901.9702941949. The cubic root of 3617491 is about 153.5096988712.

The spelling of 3617491 in words is "three million, six hundred seventeen thousand, four hundred ninety-one".