3652791787 has 4 divisors (see below), whose sum is σ = 3686930136. Its totient is φ = 3618653440.

The previous prime is 3652791761. The next prime is 3652791797. The reversal of 3652791787 is 7871972563.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3652791787 - 2³¹ = 1505308139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3652791707) 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, 17069014 + ... + 17069227.

It is an arithmetic number, because the mean of its divisors is an integer number (921732534).

Almost surely, 2^3652791787 is an apocalyptic number.

3652791787 is a deficient number, since it is larger than the sum of its proper divisors (34138349).

3652791787 is a wasteful number, since it uses less digits than its factorization.

3652791787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34138348.

The product of its digits is 4445280, while the sum is 55.

The square root of 3652791787 is about 60438.3304451736. The cubic root of 3652791787 is about 1540.0741779922.

The spelling of 3652791787 in words is "three billion, six hundred fifty-two million, seven hundred ninety-one thousand, seven hundred eighty-seven".