7072747 has 4 divisors (see below), whose sum is σ = 7715736. Its totient is φ = 6429760.

The previous prime is 7072699. The next prime is 7072771. The reversal of 7072747 is 7472707.

7072747 is nontrivially palindromic in base 2.

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 7072747 - 2¹⁹ = 6548459 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

7072747 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7072777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321478 + ... + 321499.

It is an arithmetic number, because the mean of its divisors is an integer number (1928934).

Almost surely, 2^7072747 is an apocalyptic number.

7072747 is a deficient number, since it is larger than the sum of its proper divisors (642989).

7072747 is a wasteful number, since it uses less digits than its factorization.

7072747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642988.

The product of its (nonzero) digits is 19208, while the sum is 34.

The square root of 7072747 is about 2659.4636677345. The cubic root of 7072747 is about 191.9535025570.

It can be divided in two parts, 707274 and 7, that added together give a 4-th power (707281 = 29⁴).

The spelling of 7072747 in words is "seven million, seventy-two thousand, seven hundred forty-seven".