8472739 has 8 divisors (see below), whose sum is σ = 9418032. Its totient is φ = 7556640.

The previous prime is 8472733. The next prime is 8472743. The reversal of 8472739 is 9372748.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8472739 - 2⁵ = 8472707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8472733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6684 + ... + 7849.

It is an arithmetic number, because the mean of its divisors is an integer number (1177254).

Almost surely, 2^8472739 is an apocalyptic number.

8472739 is a deficient number, since it is larger than the sum of its proper divisors (945293).

8472739 is a wasteful number, since it uses less digits than its factorization.

8472739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14597.

The product of its digits is 84672, while the sum is 40.

The square root of 8472739 is about 2910.7969699036. The cubic root of 8472739 is about 203.8643449658.

Subtracting 8472739 from its reverse (9372748), we obtain a palindrome (900009).

The spelling of 8472739 in words is "eight million, four hundred seventy-two thousand, seven hundred thirty-nine".