3546778 has 16 divisors (see below), whose sum is σ = 5714280. Its totient is φ = 1645056.

The previous prime is 3546757. The next prime is 3546799. The reversal of 3546778 is 8776453.

It is an interprime number because it is at equal distance from previous prime (3546757) and next prime (3546799).

It can be written as a sum of positive squares in 4 ways, for example, as 2812329 + 734449 = 1677^2 + 857^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3546778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1768 + ... + 3196.

Almost surely, 2^3546778 is an apocalyptic number.

3546778 is a deficient number, since it is larger than the sum of its proper divisors (2167502).

3546778 is a wasteful number, since it uses less digits than its factorization.

3546778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521.

The product of its digits is 141120, while the sum is 40.

The square root of 3546778 is about 1883.2891440244. The cubic root of 3546778 is about 152.5028647675.

The spelling of 3546778 in words is "three million, five hundred forty-six thousand, seven hundred seventy-eight".