2912320687 has 2 divisors, whose sum is σ = 2912320688. Its totient is φ = 2912320686.

The previous prime is 2912320667. The next prime is 2912320709. The reversal of 2912320687 is 7860232192.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2912320687 - 2¹⁵ = 2912287919 is a prime.

It is a super-2 number, since 2×2912320687² = 16963223567856303938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2912320667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1456160343 + 1456160344.

It is an arithmetic number, because the mean of its divisors is an integer number (1456160344).

Almost surely, 2^2912320687 is an apocalyptic number.

2912320687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2912320687 is an equidigital number, since it uses as much as digits as its factorization.

2912320687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2912320687 is about 53965.9215338717. The cubic root of 2912320687 is about 1428.0598147220.

The spelling of 2912320687 in words is "two billion, nine hundred twelve million, three hundred twenty thousand, six hundred eighty-seven".