783480 has 32 divisors (see below), whose sum is σ = 2350800. Its totient is φ = 208896.

The previous prime is 783473. The next prime is 783487. The reversal of 783480 is 84387.

It is an interprime number because it is at equal distance from previous prime (783473) and next prime (783487).

It is a super-2 number, since 2×783480² = 1227681820800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (783487) by changing a digit.

783480 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3145 + ... + 3384.

2⁷⁸³⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

783480 is an abundant number, since it is smaller than the sum of its proper divisors (1567320).

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

783480 is a wasteful number, since it uses less digits than its factorization.

783480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6543 (or 6539 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 783480 is about 885.1440560722. The cubic root of 783480 is about 92.1883350494.

The spelling of 783480 in words is "seven hundred eighty-three thousand, four hundred eighty".