761816 has 24 divisors (see below), whose sum is σ = 1572060. Its totient is φ = 345840.

The previous prime is 761809. The next prime is 761833. The reversal of 761816 is 618167.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

761816 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 575 + ... + 1361.

2⁷⁶¹⁸¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 761816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786030).

761816 is an abundant number, since it is smaller than the sum of its proper divisors (810244).

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

761816 is a wasteful number, since it uses less digits than its factorization.

761816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815 (or 800 counting only the distinct ones).

The product of its digits is 2016, while the sum is 29.

The square root of 761816 is about 872.8207146946. The cubic root of 761816 is about 91.3306811290.

The spelling of 761816 in words is "seven hundred sixty-one thousand, eight hundred sixteen".