3618791 has 4 divisors (see below), whose sum is σ = 3947784. Its totient is φ = 3289800.

The previous prime is 3618761. The next prime is 3618793. The reversal of 3618791 is 1978163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1978163 = 11 ⋅179833.

It is a cyclic number.

It is not a de Polignac number, because 3618791 - 2¹⁰ = 3617767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618793) 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, 164480 + ... + 164501.

It is an arithmetic number, because the mean of its divisors is an integer number (986946).

Almost surely, 2^3618791 is an apocalyptic number.

3618791 is a deficient number, since it is larger than the sum of its proper divisors (328993).

3618791 is a wasteful number, since it uses less digits than its factorization.

3618791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328992.

The product of its digits is 9072, while the sum is 35.

The square root of 3618791 is about 1902.3120143657. The cubic root of 3618791 is about 153.5280853447.

The spelling of 3618791 in words is "three million, six hundred eighteen thousand, seven hundred ninety-one".