3649078 has 4 divisors (see below), whose sum is σ = 5473620. Its totient is φ = 1824538.

The previous prime is 3649057. The next prime is 3649097. The reversal of 3649078 is 8709463.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912268 + ... + 912271.

It is an arithmetic number, because the mean of its divisors is an integer number (1368405).

Almost surely, 2^3649078 is an apocalyptic number.

3649078 is a deficient number, since it is larger than the sum of its proper divisors (1824542).

3649078 is a wasteful number, since it uses less digits than its factorization.

3649078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824541.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 3649078 is about 1910.2560037859. The cubic root of 3649078 is about 153.9552070772.

The spelling of 3649078 in words is "three million, six hundred forty-nine thousand, seventy-eight".