686093950 has 24 divisors (see below), whose sum is σ = 1277761968. Its totient is φ = 274087680.

The previous prime is 686093927. The next prime is 686093981. The reversal of 686093950 is 59390686.

686093950 is nontrivially palindromic in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 686093950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32814 + ... + 49486.

It is an arithmetic number, because the mean of its divisors is an integer number (53240082).

Almost surely, 2^686093950 is an apocalyptic number.

686093950 is a deficient number, since it is larger than the sum of its proper divisors (591668018).

686093950 is a wasteful number, since it uses less digits than its factorization.

686093950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17508 (or 17503 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 686093950 is about 26193.3951598490. The cubic root of 686093950 is about 881.9849948514.

The spelling of 686093950 in words is "six hundred eighty-six million, ninety-three thousand, nine hundred fifty".