761821842 has 8 divisors (see below), whose sum is σ = 1523643696. Its totient is φ = 253940612.

The previous prime is 761821829. The next prime is 761821849. The reversal of 761821842 is 248128167.

It is a happy number.

761821842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

761821842 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 761821842.

It is not an unprimeable number, because it can be changed into a prime (761821849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63485148 + ... + 63485159.

It is an arithmetic number, because the mean of its divisors is an integer number (190455462).

Almost surely, 2^761821842 is an apocalyptic number.

761821842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

761821842 is a wasteful number, since it uses less digits than its factorization.

761821842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126970312.

The product of its digits is 43008, while the sum is 39.

The square root of 761821842 is about 27601.1203033500. The cubic root of 761821842 is about 913.3091458540.

The spelling of 761821842 in words is "seven hundred sixty-one million, eight hundred twenty-one thousand, eight hundred forty-two".