816546731 has 24 divisors (see below), whose sum is σ = 1115929584. Its totient is φ = 587321280.

The previous prime is 816546677. The next prime is 816546733. The reversal of 816546731 is 137645618.

816546731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 816546731 - 2¹⁴ = 816530347 is a prime.

It is a super-2 number, since 2×816546731² = 1333497127813572722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (816546733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51260 + ... + 65273.

It is an arithmetic number, because the mean of its divisors is an integer number (46497066).

Almost surely, 2^816546731 is an apocalyptic number.

816546731 is a deficient number, since it is larger than the sum of its proper divisors (299382853).

816546731 is a wasteful number, since it uses less digits than its factorization.

816546731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116571 (or 116564 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 816546731 is about 28575.2818183828. The cubic root of 816546731 is about 934.6744006263.

The spelling of 816546731 in words is "eight hundred sixteen million, five hundred forty-six thousand, seven hundred thirty-one".