3721862087 has 2 divisors, whose sum is σ = 3721862088. Its totient is φ = 3721862086.

The previous prime is 3721862069. The next prime is 3721862147. The reversal of 3721862087 is 7802681273.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3721862087 - 2⁸ = 3721861831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3721864087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1860931043 + 1860931044.

It is an arithmetic number, because the mean of its divisors is an integer number (1860931044).

Almost surely, 2^3721862087 is an apocalyptic number.

3721862087 is a deficient number, since it is larger than the sum of its proper divisors (1).

3721862087 is an equidigital number, since it uses as much as digits as its factorization.

3721862087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 3721862087 is about 61007.0658776506. The cubic root of 3721862087 is about 1549.7206693309.

The spelling of 3721862087 in words is "three billion, seven hundred twenty-one million, eight hundred sixty-two thousand, eighty-seven".