627742164 has 24 divisors (see below), whose sum is σ = 1673979328. Its totient is φ = 179354880.

The previous prime is 627742163. The next prime is 627742189. The reversal of 627742164 is 461247726.

627742164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (627742163) 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, 3736477 + ... + 3736644.

Almost surely, 2^627742164 is an apocalyptic number.

It is an amenable number.

627742164 is an abundant number, since it is smaller than the sum of its proper divisors (1046237164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

627742164 is a wasteful number, since it uses less digits than its factorization.

627742164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7473135 (or 7473133 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 627742164 is about 25054.7832558975. The cubic root of 627742164 is about 856.2365582702.

The spelling of 627742164 in words is "six hundred twenty-seven million, seven hundred forty-two thousand, one hundred sixty-four".