2087915631 has 16 divisors (see below), whose sum is σ = 2795358720. Its totient is φ = 1386221760.

The previous prime is 2087915629. The next prime is 2087915633. The reversal of 2087915631 is 1365197802.

It is an interprime number because it is at equal distance from previous prime (2087915629) and next prime (2087915633).

It is not a de Polignac number, because 2087915631 - 2¹ = 2087915629 is a prime.

It is a super-2 number, since 2×2087915631² = 8718783364348256322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087915633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914211 + ... + 916491.

It is an arithmetic number, because the mean of its divisors is an integer number (174709920).

Almost surely, 2^2087915631 is an apocalyptic number.

2087915631 is a deficient number, since it is larger than the sum of its proper divisors (707443089).

2087915631 is a wasteful number, since it uses less digits than its factorization.

2087915631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 2087915631 is about 45693.7154431548. The cubic root of 2087915631 is about 1278.1180904101.

The spelling of 2087915631 in words is "two billion, eighty-seven million, nine hundred fifteen thousand, six hundred thirty-one".