810641734 has 8 divisors (see below), whose sum is σ = 1389671568. Its totient is φ = 347417880.

The previous prime is 810641729. The next prime is 810641771. The reversal of 810641734 is 437146018.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 810641734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28951477 + ... + 28951504.

It is an arithmetic number, because the mean of its divisors is an integer number (173708946).

Almost surely, 2^810641734 is an apocalyptic number.

810641734 is a deficient number, since it is larger than the sum of its proper divisors (579029834).

810641734 is a wasteful number, since it uses less digits than its factorization.

810641734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57902990.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 810641734 is about 28471.7708265573. The cubic root of 810641734 is about 932.4158617097.

The spelling of 810641734 in words is "eight hundred ten million, six hundred forty-one thousand, seven hundred thirty-four".