863430804 has 36 divisors (see below), whose sum is σ = 2257824660. Its totient is φ = 277885440.

The previous prime is 863430797. The next prime is 863430811. The reversal of 863430804 is 408034368.

It is an interprime number because it is at equal distance from previous prime (863430797) and next prime (863430811).

It can be written as a sum of positive squares in 2 ways, for example, as 361760400 + 501670404 = 19020^2 + 22398^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412477 + ... + 414564.

Almost surely, 2^863430804 is an apocalyptic number.

It is an amenable number.

863430804 is an abundant number, since it is smaller than the sum of its proper divisors (1394393856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

863430804 is a wasteful number, since it uses less digits than its factorization.

863430804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827080 (or 827075 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 863430804 is about 29384.1930976503. The cubic root of 863430804 is about 952.2314319177.

It can be divided in two parts, 86 and 3430804, that added together give a triangular number (3430890 = T₂₆₁₉).

The spelling of 863430804 in words is "eight hundred sixty-three million, four hundred thirty thousand, eight hundred four".