628748692 has 48 divisors (see below), whose sum is σ = 1304880192. Its totient is φ = 261319680.

The previous prime is 628748671. The next prime is 628748693. The reversal of 628748692 is 296847826.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628748693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56068 + ... + 66340.

It is an arithmetic number, because the mean of its divisors is an integer number (27185004).

Almost surely, 2^628748692 is an apocalyptic number.

It is an amenable number.

628748692 is an abundant number, since it is smaller than the sum of its proper divisors (676131500).

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

628748692 is a wasteful number, since it uses less digits than its factorization.

628748692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10408 (or 10406 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 52.

The square root of 628748692 is about 25074.8617543547. The cubic root of 628748692 is about 856.6939466214.

The spelling of 628748692 in words is "six hundred twenty-eight million, seven hundred forty-eight thousand, six hundred ninety-two".