3521497 has 8 divisors (see below), whose sum is σ = 4036736. Its totient is φ = 3009312.

The previous prime is 3521489. The next prime is 3521513. The reversal of 3521497 is 7941253.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3521497 - 2³ = 3521489 is a prime.

It is a super-2 number, since 2×3521497² = 24801882242018, which contains 22 as substring.

It is a Duffinian number.

3521497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3521417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2893 + ... + 3925.

It is an arithmetic number, because the mean of its divisors is an integer number (504592).

Almost surely, 2^3521497 is an apocalyptic number.

It is an amenable number.

3521497 is a deficient number, since it is larger than the sum of its proper divisors (515239).

3521497 is a wasteful number, since it uses less digits than its factorization.

3521497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527.

The product of its digits is 7560, while the sum is 31.

The square root of 3521497 is about 1876.5652133619. The cubic root of 3521497 is about 152.1396598432.

It can be divided in two parts, 352 and 1497, that added together give a square (1849 = 43²).

The spelling of 3521497 in words is "three million, five hundred twenty-one thousand, four hundred ninety-seven".