671415026 has 4 divisors (see below), whose sum is σ = 1007122542. Its totient is φ = 335707512.

The previous prime is 671415013. The next prime is 671415089. The reversal of 671415026 is 620514176.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 650301001 + 21114025 = 25501^2 + 4595^2 .

It is a junction number, because it is equal to n+sod(n) for n = 671414983 and 671415001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167853755 + ... + 167853758.

Almost surely, 2^671415026 is an apocalyptic number.

671415026 is a deficient number, since it is larger than the sum of its proper divisors (335707516).

671415026 is a wasteful number, since it uses less digits than its factorization.

671415026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335707515.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 671415026 is about 25911.6774061426. The cubic root of 671415026 is about 875.6495969691.

It can be divided in two parts, 6714150 and 26, that added together give a palindrome (6714176).

The spelling of 671415026 in words is "six hundred seventy-one million, four hundred fifteen thousand, twenty-six".