2957645 has 8 divisors (see below), whose sum is σ = 3584256. Its totient is φ = 2342736.

The previous prime is 2957641. The next prime is 2957651. The reversal of 2957645 is 5467592.

It is a happy number.

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 2957645 - 2² = 2957641 is a prime.

It is a super-3 number, since 3×2957645³ = 77617453594923333375, which contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2957599 and 2957608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2957641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2357 + ... + 3386.

It is an arithmetic number, because the mean of its divisors is an integer number (448032).

2^2957645 is an apocalyptic number.

It is an amenable number.

2957645 is a deficient number, since it is larger than the sum of its proper divisors (626611).

2957645 is a wasteful number, since it uses less digits than its factorization.

2957645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851.

The product of its digits is 75600, while the sum is 38.

The square root of 2957645 is about 1719.7805092511. The cubic root of 2957645 is about 143.5429988461.

The spelling of 2957645 in words is "two million, nine hundred fifty-seven thousand, six hundred forty-five".