3640767 has 24 divisors (see below), whose sum is σ = 5410944. Its totient is φ = 2175264.

The previous prime is 3640753. The next prime is 3640781. The reversal of 3640767 is 7670463.

It is an interprime number because it is at equal distance from previous prime (3640753) and next prime (3640781).

It is not a de Polignac number, because 3640767 - 2¹⁰ = 3639743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640717) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21718 + ... + 21884.

It is an arithmetic number, because the mean of its divisors is an integer number (225456).

Almost surely, 2^3640767 is an apocalyptic number.

3640767 is a deficient number, since it is larger than the sum of its proper divisors (1770177).

3640767 is a wasteful number, since it uses less digits than its factorization.

3640767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 3640767 is about 1908.0794008636. The cubic root of 3640767 is about 153.8382374068.

The spelling of 3640767 in words is "three million, six hundred forty thousand, seven hundred sixty-seven".