8214739 has 4 divisors (see below), whose sum is σ = 8846656. Its totient is φ = 7582824.

The previous prime is 8214737. The next prime is 8214769. The reversal of 8214739 is 9374128.

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

It is a cyclic number.

It is not a de Polignac number, because 8214739 - 2¹ = 8214737 is a prime.

It is an Ulam number.

8214739 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8214737) 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, 315939 + ... + 315964.

It is an arithmetic number, because the mean of its divisors is an integer number (2211664).

Almost surely, 2^8214739 is an apocalyptic number.

8214739 is a deficient number, since it is larger than the sum of its proper divisors (631917).

8214739 is a wasteful number, since it uses less digits than its factorization.

8214739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631916.

The product of its digits is 12096, while the sum is 34.

The square root of 8214739 is about 2866.1365982800. The cubic root of 8214739 is about 201.7737148431.

The spelling of 8214739 in words is "eight million, two hundred fourteen thousand, seven hundred thirty-nine".