628873402 has 8 divisors (see below), whose sum is σ = 944212500. Its totient is φ = 314135904.

The previous prime is 628873351. The next prime is 628873433. The reversal of 628873402 is 204378826.

It can be written as a sum of positive squares in 2 ways, for example, as 483164361 + 145709041 = 21981^2 + 12071^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147777 + ... + 151972.

Almost surely, 2^628873402 is an apocalyptic number.

628873402 is a deficient number, since it is larger than the sum of its proper divisors (315339098).

628873402 is a wasteful number, since it uses less digits than its factorization.

628873402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300800.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 628873402 is about 25077.3483845482. The cubic root of 628873402 is about 856.7505835791.

The spelling of 628873402 in words is "six hundred twenty-eight million, eight hundred seventy-three thousand, four hundred two".