3720402587 has 16 divisors (see below), whose sum is σ = 4356247392. Its totient is φ = 3139614720.

The previous prime is 3720402583. The next prime is 3720402593. The reversal of 3720402587 is 7852040273.

It is not a de Polignac number, because 3720402587 - 2² = 3720402583 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 3720402587.

It is not an unprimeable number, because it can be changed into a prime (3720402583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122618 + ... + 149919.

It is an arithmetic number, because the mean of its divisors is an integer number (272265462).

Almost surely, 2^3720402587 is an apocalyptic number.

3720402587 is a deficient number, since it is larger than the sum of its proper divisors (635844805).

3720402587 is a wasteful number, since it uses less digits than its factorization.

3720402587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272638.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 3720402587 is about 60995.1029755668. The cubic root of 3720402587 is about 1549.5180724426.

The spelling of 3720402587 in words is "three billion, seven hundred twenty million, four hundred two thousand, five hundred eighty-seven".