862873877 has 2 divisors, whose sum is σ = 862873878. Its totient is φ = 862873876.

The previous prime is 862873861. The next prime is 862873903. The reversal of 862873877 is 778378268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 686754436 + 176119441 = 26206^2 + 13271^2 .

It is a cyclic number.

It is not a de Polignac number, because 862873877 - 2⁴ = 862873861 is a prime.

It is a super-2 number, since 2×862873877² = 1489102655218022258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (862873177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431436938 + 431436939.

It is an arithmetic number, because the mean of its divisors is an integer number (431436939).

Almost surely, 2^862873877 is an apocalyptic number.

It is an amenable number.

862873877 is a deficient number, since it is larger than the sum of its proper divisors (1).

862873877 is an equidigital number, since it uses as much as digits as its factorization.

862873877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6322176, while the sum is 56.

The square root of 862873877 is about 29374.7149262763. The cubic root of 862873877 is about 952.0266529300.

The spelling of 862873877 in words is "eight hundred sixty-two million, eight hundred seventy-three thousand, eight hundred seventy-seven".