862838155 has 4 divisors (see below), whose sum is σ = 1035405792. Its totient is φ = 690270520.

The previous prime is 862838143. The next prime is 862838167. The reversal of 862838155 is 551838268.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (862838143) and next prime (862838167).

It is not a de Polignac number, because 862838155 - 2⁹ = 862837643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86283811 + ... + 86283820.

It is an arithmetic number, because the mean of its divisors is an integer number (258851448).

Almost surely, 2^862838155 is an apocalyptic number.

862838155 is a deficient number, since it is larger than the sum of its proper divisors (172567637).

862838155 is a wasteful number, since it uses less digits than its factorization.

862838155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172567636.

The product of its digits is 460800, while the sum is 46.

The square root of 862838155 is about 29374.1068800398. The cubic root of 862838155 is about 952.0135151407.

The spelling of 862838155 in words is "eight hundred sixty-two million, eight hundred thirty-eight thousand, one hundred fifty-five".