3640057 has 8 divisors (see below), whose sum is σ = 3873096. Its totient is φ = 3409152.

The previous prime is 3640037. The next prime is 3640061. The reversal of 3640057 is 7500463.

It can be written as a sum of positive squares in 4 ways, for example, as 33856 + 3606201 = 184^2 + 1899^2 .

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 3640057 - 2⁷ = 3639929 is a prime.

It is a Duffinian number.

3640057 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3640027) 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, 4323 + ... + 5095.

It is an arithmetic number, because the mean of its divisors is an integer number (484137).

Almost surely, 2^3640057 is an apocalyptic number.

It is an amenable number.

3640057 is a deficient number, since it is larger than the sum of its proper divisors (233039).

3640057 is a wasteful number, since it uses less digits than its factorization.

3640057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 3640057 is about 1907.8933408343. The cubic root of 3640057 is about 153.8282365608.

The spelling of 3640057 in words is "three million, six hundred forty thousand, fifty-seven".