628051393 has 4 divisors (see below), whose sum is σ = 631560240. Its totient is φ = 624542548.

The previous prime is 628051381. The next prime is 628051427. The reversal of 628051393 is 393150826.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 628051393 - 2²⁵ = 594496961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628051093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754155 + ... + 1754512.

It is an arithmetic number, because the mean of its divisors is an integer number (157890060).

Almost surely, 2^628051393 is an apocalyptic number.

It is an amenable number.

628051393 is a deficient number, since it is larger than the sum of its proper divisors (3508847).

628051393 is a wasteful number, since it uses less digits than its factorization.

628051393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508846.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 628051393 is about 25060.9535532868. The cubic root of 628051393 is about 856.3771306928.

The spelling of 628051393 in words is "six hundred twenty-eight million, fifty-one thousand, three hundred ninety-three".