6890039251 has 8 divisors (see below), whose sum is σ = 6936451200. Its totient is φ = 6843766272.

The previous prime is 6890039231. The next prime is 6890039279. The reversal of 6890039251 is 1529300986.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6890039251 - 2¹³ = 6890031059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6890039198 and 6890039207.

It is not an unprimeable number, because it can be changed into a prime (6890039231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65721 + ... + 134533.

It is an arithmetic number, because the mean of its divisors is an integer number (867056400).

Almost surely, 2^6890039251 is an apocalyptic number.

6890039251 is a deficient number, since it is larger than the sum of its proper divisors (46411949).

6890039251 is a wasteful number, since it uses less digits than its factorization.

6890039251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69485.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 6890039251 is about 83006.2603120994. The cubic root of 6890039251 is about 1902.8617310607.

The spelling of 6890039251 in words is "six billion, eight hundred ninety million, thirty-nine thousand, two hundred fifty-one".