628817413 has 4 divisors (see below), whose sum is σ = 718648480. Its totient is φ = 538986348.

The previous prime is 628817383. The next prime is 628817419. The reversal of 628817413 is 314718826.

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, and also an emirpimes, since its reverse is a distinct semiprime: 314718826 = 2 ⋅157359413.

It is a cyclic number.

It is not a de Polignac number, because 628817413 - 2¹³ = 628809221 is a prime.

It is a super-2 number, since 2×628817413² = 790822677784025138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628817419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44915523 + ... + 44915536.

It is an arithmetic number, because the mean of its divisors is an integer number (179662120).

Almost surely, 2^628817413 is an apocalyptic number.

It is an amenable number.

628817413 is a deficient number, since it is larger than the sum of its proper divisors (89831067).

628817413 is an equidigital number, since it uses as much as digits as its factorization.

628817413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89831066.

The product of its digits is 64512, while the sum is 40.

The square root of 628817413 is about 25076.2320335412. The cubic root of 628817413 is about 856.7251571409.

The spelling of 628817413 in words is "six hundred twenty-eight million, eight hundred seventeen thousand, four hundred thirteen".