7072643 has 4 divisors (see below), whose sum is σ = 7084128. Its totient is φ = 7061160.

The previous prime is 7072631. The next prime is 7072649. The reversal of 7072643 is 3462707.

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 7072643 - 2¹⁰ = 7071619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7072649) 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, 4763 + ... + 6068.

It is an arithmetic number, because the mean of its divisors is an integer number (1771032).

Almost surely, 2^7072643 is an apocalyptic number.

7072643 is a deficient number, since it is larger than the sum of its proper divisors (11485).

7072643 is a wasteful number, since it uses less digits than its factorization.

7072643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11484.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 7072643 is about 2659.4441148481. Note that the first 3 decimals coincide. The cubic root of 7072643 is about 191.9525617032.

The spelling of 7072643 in words is "seven million, seventy-two thousand, six hundred forty-three".