3640371773 has 4 divisors (see below), whose sum is σ = 3640581120. Its totient is φ = 3640162428.

The previous prime is 3640371767. The next prime is 3640371829. The reversal of 3640371773 is 3771730463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3771730463 = 23 ⋅163988281.

It is a cyclic number.

It is not a de Polignac number, because 3640371773 - 2¹² = 3640367677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3640371773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640371733) 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, 75965 + ... + 114242.

It is an arithmetic number, because the mean of its divisors is an integer number (910145280).

Almost surely, 2^3640371773 is an apocalyptic number.

It is an amenable number.

3640371773 is a deficient number, since it is larger than the sum of its proper divisors (209347).

3640371773 is a wasteful number, since it uses less digits than its factorization.

3640371773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209346.

The product of its (nonzero) digits is 222264, while the sum is 41.

The square root of 3640371773 is about 60335.4934760627. The cubic root of 3640371773 is about 1538.3267051885.

The spelling of 3640371773 in words is "three billion, six hundred forty million, three hundred seventy-one thousand, seven hundred seventy-three".