83782899 has 6 divisors (see below), whose sum is σ = 121019756. Its totient is φ = 55855260.

The previous prime is 83782883. The next prime is 83782931. The reversal of 83782899 is 99828738.

It is not a de Polignac number, because 83782899 - 2⁴ = 83782883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83782879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4654597 + ... + 4654614.

Almost surely, 2^83782899 is an apocalyptic number.

83782899 is a deficient number, since it is larger than the sum of its proper divisors (37236857).

83782899 is a wasteful number, since it uses less digits than its factorization.

83782899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9309217 (or 9309214 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 54.

The square root of 83782899 is about 9153.2998967585. The cubic root of 83782899 is about 437.5742876845.

It can be divided in two parts, 83782 and 899, that added together give a square (84681 = 291²).

The spelling of 83782899 in words is "eighty-three million, seven hundred eighty-two thousand, eight hundred ninety-nine".