3478669 has 4 divisors (see below), whose sum is σ = 3526396. Its totient is φ = 3430944.

The previous prime is 3478667. The next prime is 3478679. The reversal of 3478669 is 9668743.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1532644 + 1946025 = 1238^2 + 1395^2 .

It is a cyclic number.

It is not a de Polignac number, because 3478669 - 2¹ = 3478667 is a prime.

It is a super-2 number, since 2×3478669² = 24202276023122, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁵ + 4⁵ + 7⁶ + 8³ + 6⁸ + 6⁸ + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3478661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23754 + ... + 23899.

It is an arithmetic number, because the mean of its divisors is an integer number (881599).

Almost surely, 2^3478669 is an apocalyptic number.

It is an amenable number.

3478669 is a deficient number, since it is larger than the sum of its proper divisors (47727).

3478669 is an equidigital number, since it uses as much as digits as its factorization.

3478669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47726.

The product of its digits is 217728, while the sum is 43.

The square root of 3478669 is about 1865.1190310541. The cubic root of 3478669 is about 151.5203747100.

The spelling of 3478669 in words is "three million, four hundred seventy-eight thousand, six hundred sixty-nine".