3117745 has 8 divisors (see below), whose sum is σ = 3821184. Its totient is φ = 2440944.

The previous prime is 3117739. The next prime is 3117781. The reversal of 3117745 is 5477113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3117745 - 2⁵ = 3117713 is a prime.

It is a Duffinian number.

3117745 is a lucky number.

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, 6399 + ... + 6868.

It is an arithmetic number, because the mean of its divisors is an integer number (477648).

Almost surely, 2^3117745 is an apocalyptic number.

It is an amenable number.

3117745 is a deficient number, since it is larger than the sum of its proper divisors (703439).

3117745 is a wasteful number, since it uses less digits than its factorization.

3117745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13319.

The product of its digits is 2940, while the sum is 28.

The square root of 3117745 is about 1765.7137367082. The cubic root of 3117745 is about 146.0876592493.

The spelling of 3117745 in words is "three million, one hundred seventeen thousand, seven hundred forty-five".