628465862 has 4 divisors (see below), whose sum is σ = 942698796. Its totient is φ = 314232930.

The previous prime is 628465787. The next prime is 628465867. The reversal of 628465862 is 268564826.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 268564826 = 2 ⋅134282413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628465867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157116464 + ... + 157116467.

It is an arithmetic number, because the mean of its divisors is an integer number (235674699).

Almost surely, 2^628465862 is an apocalyptic number.

628465862 is a deficient number, since it is larger than the sum of its proper divisors (314232934).

628465862 is a wasteful number, since it uses less digits than its factorization.

628465862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314232933.

The product of its digits is 1105920, while the sum is 47.

The square root of 628465862 is about 25069.2214079337. The cubic root of 628465862 is about 856.5654718205.

The spelling of 628465862 in words is "six hundred twenty-eight million, four hundred sixty-five thousand, eight hundred sixty-two".