3668878 has 4 divisors (see below), whose sum is σ = 5503320. Its totient is φ = 1834438.

The previous prime is 3668869. The next prime is 3668879. The reversal of 3668878 is 8788663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8788663 = 13 ⋅676051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917218 + ... + 917221.

It is an arithmetic number, because the mean of its divisors is an integer number (1375830).

Almost surely, 2^3668878 is an apocalyptic number.

3668878 is a deficient number, since it is larger than the sum of its proper divisors (1834442).

3668878 is a wasteful number, since it uses less digits than its factorization.

3668878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834441.

The product of its digits is 387072, while the sum is 46.

The square root of 3668878 is about 1915.4315440652. The cubic root of 3668878 is about 154.2331600514.

The spelling of 3668878 in words is "three million, six hundred sixty-eight thousand, eight hundred seventy-eight".