803634780 has 96 divisors (see below), whose sum is σ = 2447500608. Its totient is φ = 195859200.

The previous prime is 803634779. The next prime is 803634781. The reversal of 803634780 is 87436308.

It is an interprime number because it is at equal distance from previous prime (803634779) and next prime (803634781).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 1313 × 505 × 1212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (803634781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7956730 + ... + 7956830.

It is an arithmetic number, because the mean of its divisors is an integer number (25494798).

Almost surely, 2^803634780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 803634780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223750304).

803634780 is an abundant number, since it is smaller than the sum of its proper divisors (1643865828).

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

803634780 is a wasteful number, since it uses less digits than its factorization.

803634780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 803634780 is about 28348.4528678374. The cubic root of 803634780 is about 929.7215723341.

The spelling of 803634780 in words is "eight hundred three million, six hundred thirty-four thousand, seven hundred eighty".