8490739 has 4 divisors (see below), whose sum is σ = 8937640. Its totient is φ = 8043840.

The previous prime is 8490721. The next prime is 8490761. The reversal of 8490739 is 9370948.

8490739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 8490739 - 2¹¹ = 8488691 is a prime.

It is a super-2 number, since 2×8490739² = 144185297532242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8490799) 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, 223422 + ... + 223459.

It is an arithmetic number, because the mean of its divisors is an integer number (2234410).

Almost surely, 2^8490739 is an apocalyptic number.

8490739 is a deficient number, since it is larger than the sum of its proper divisors (446901).

8490739 is a wasteful number, since it uses less digits than its factorization.

8490739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446900.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 8490739 is about 2913.8872661790. The cubic root of 8490739 is about 204.0086101069.

It can be divided in two parts, 8490 and 739, that added together give a palindrome (9229).

The spelling of 8490739 in words is "eight million, four hundred ninety thousand, seven hundred thirty-nine".