3346978 has 4 divisors (see below), whose sum is σ = 5020470. Its totient is φ = 1673488.

The previous prime is 3346963. The next prime is 3346979. The reversal of 3346978 is 8796433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8796433 = 317 ⋅27749.

It can be written as a sum of positive squares in only one way, i.e., 1841449 + 1505529 = 1357^2 + 1227^2 .

It is a super-2 number, since 2×3346978² = 22404523464968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a d-powerful number, because it can be written as 3⁸ + 3¹¹ + 4¹⁰ + 6 + 9³ + 7⁵ + 8⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 3346978.

It is not an unprimeable number, because it can be changed into a prime (3346979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836743 + ... + 836746.

Almost surely, 2^3346978 is an apocalyptic number.

3346978 is a deficient number, since it is larger than the sum of its proper divisors (1673492).

3346978 is a wasteful number, since it uses less digits than its factorization.

3346978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673491.

The product of its digits is 108864, while the sum is 40.

The square root of 3346978 is about 1829.4747880198. The cubic root of 3346978 is about 149.5837049845.

The spelling of 3346978 in words is "three million, three hundred forty-six thousand, nine hundred seventy-eight".