83780263 has 8 divisors (see below), whose sum is σ = 95979680. Its totient is φ = 71638560.

The previous prime is 83780209. The next prime is 83780287. The reversal of 83780263 is 36208738.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83780263 - 2¹³ = 83772071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83780563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11268 + ... + 17161.

It is an arithmetic number, because the mean of its divisors is an integer number (11997460).

Almost surely, 2^83780263 is an apocalyptic number.

83780263 is a deficient number, since it is larger than the sum of its proper divisors (12199417).

83780263 is a wasteful number, since it uses less digits than its factorization.

83780263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28857.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 83780263 is about 9153.1559038399. The cubic root of 83780263 is about 437.5696986099.

It can be divided in two parts, 837802 and 63, that added together give a triangular number (837865 = T₁₂₉₄).

The spelling of 83780263 in words is "eighty-three million, seven hundred eighty thousand, two hundred sixty-three".