76863489 has 16 divisors (see below), whose sum is σ = 106656000. Its totient is φ = 49197456.

The previous prime is 76863487. The next prime is 76863491. The reversal of 76863489 is 98436867.

It is an interprime number because it is at equal distance from previous prime (76863487) and next prime (76863491).

It is not a de Polignac number, because 76863489 - 2¹ = 76863487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76863481) 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, 2562 + ... + 12660.

It is an arithmetic number, because the mean of its divisors is an integer number (6666000).

Almost surely, 2^76863489 is an apocalyptic number.

It is an amenable number.

76863489 is a deficient number, since it is larger than the sum of its proper divisors (29792511).

76863489 is a wasteful number, since it uses less digits than its factorization.

76863489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10204.

The product of its digits is 1741824, while the sum is 51.

The square root of 76863489 is about 8767.1825006669. The cubic root of 76863489 is about 425.1805258453.

It can be divided in two parts, 7686 and 3489, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 76863489 in words is "seventy-six million, eight hundred sixty-three thousand, four hundred eighty-nine".