626381894 has 4 divisors (see below), whose sum is σ = 939572844. Its totient is φ = 313190946.

The previous prime is 626381893. The next prime is 626381897. The reversal of 626381894 is 498183626.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626381891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156595472 + ... + 156595475.

It is an arithmetic number, because the mean of its divisors is an integer number (234893211).

Almost surely, 2^626381894 is an apocalyptic number.

626381894 is a deficient number, since it is larger than the sum of its proper divisors (313190950).

626381894 is a wasteful number, since it uses less digits than its factorization.

626381894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313190949.

The product of its digits is 497664, while the sum is 47.

The square root of 626381894 is about 25027.6226198175. The cubic root of 626381894 is about 855.6176442925.

The spelling of 626381894 in words is "six hundred twenty-six million, three hundred eighty-one thousand, eight hundred ninety-four".