4247987626 has 4 divisors (see below), whose sum is σ = 6371981442. Its totient is φ = 2123993812.

The previous prime is 4247987617. The next prime is 4247987641. The reversal of 4247987626 is 6267897424.

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., 3716731225 + 531256401 = 60965^2 + 23049^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061996905 + ... + 1061996908.

Almost surely, 2^4247987626 is an apocalyptic number.

4247987626 is a deficient number, since it is larger than the sum of its proper divisors (2123993816).

4247987626 is a wasteful number, since it uses less digits than its factorization.

4247987626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123993815.

The product of its digits is 8128512, while the sum is 55.

The square root of 4247987626 is about 65176.5880205462. The cubic root of 4247987626 is about 1619.5502010390.

The spelling of 4247987626 in words is "four billion, two hundred forty-seven million, nine hundred eighty-seven thousand, six hundred twenty-six".