3870870215 has 16 divisors (see below), whose sum is σ = 4856241600. Its totient is φ = 2962010656.

The previous prime is 3870870103. The next prime is 3870870217. The reversal of 3870870215 is 5120780783.

It is a de Polignac number, because none of the positive numbers 2^k-3870870215 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870870217) 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, 29021 + ... + 92649.

It is an arithmetic number, because the mean of its divisors is an integer number (303515100).

Almost surely, 2^3870870215 is an apocalyptic number.

3870870215 is a deficient number, since it is larger than the sum of its proper divisors (985371385).

3870870215 is an frugal number, since it uses more digits than its factorization.

3870870215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63703 (or 63657 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 3870870215 is about 62216.3179158008. The cubic root of 3870870215 is about 1570.1321396077.

The spelling of 3870870215 in words is "three billion, eight hundred seventy million, eight hundred seventy thousand, two hundred fifteen".