628770762 has 96 divisors (see below), whose sum is σ = 1500408000. Its totient is φ = 196795008.

The previous prime is 628770761. The next prime is 628770763. The reversal of 628770762 is 267077826.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (628770761) and next prime (628770763).

It is a super-2 number, since 2×628770762² = 790705342292121288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (628770761) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1375638 + ... + 1376094.

It is an arithmetic number, because the mean of its divisors is an integer number (15629250).

Almost surely, 2^628770762 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628770762, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750204000).

628770762 is an abundant number, since it is smaller than the sum of its proper divisors (871637238).

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

628770762 is a wasteful number, since it uses less digits than its factorization.

628770762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 628770762 is about 25075.3018326799. The cubic root of 628770762 is about 856.7039702416.

The spelling of 628770762 in words is "six hundred twenty-eight million, seven hundred seventy thousand, seven hundred sixty-two".