916439782 has 4 divisors (see below), whose sum is σ = 1374659676. Its totient is φ = 458219890.

The previous prime is 916439773. The next prime is 916439789. The reversal of 916439782 is 287934619.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916439789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229109944 + ... + 229109947.

It is an arithmetic number, because the mean of its divisors is an integer number (343664919).

Almost surely, 2^916439782 is an apocalyptic number.

916439782 is a deficient number, since it is larger than the sum of its proper divisors (458219894).

916439782 is a wasteful number, since it uses less digits than its factorization.

916439782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458219893.

The product of its digits is 653184, while the sum is 49.

The square root of 916439782 is about 30272.7564321454. The cubic root of 916439782 is about 971.3326289597.

The spelling of 916439782 in words is "nine hundred sixteen million, four hundred thirty-nine thousand, seven hundred eighty-two".