6890735623 has 4 divisors (see below), whose sum is σ = 7190332848. Its totient is φ = 6591138400.

The previous prime is 6890735609. The next prime is 6890735633. The reversal of 6890735623 is 3265370986.

It is a happy number.

6890735623 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6890735623 - 2⁵ = 6890735591 is a prime.

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 Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890735633) 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, 149798578 + ... + 149798623.

It is an arithmetic number, because the mean of its divisors is an integer number (1797583212).

Almost surely, 2^6890735623 is an apocalyptic number.

6890735623 is a deficient number, since it is larger than the sum of its proper divisors (299597225).

6890735623 is a wasteful number, since it uses less digits than its factorization.

6890735623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299597224.

The product of its (nonzero) digits is 1632960, while the sum is 49.

The square root of 6890735623 is about 83010.4549017773. The cubic root of 6890735623 is about 1902.9258359200.

The spelling of 6890735623 in words is "six billion, eight hundred ninety million, seven hundred thirty-five thousand, six hundred twenty-three".