4072747 has 4 divisors (see below), whose sum is σ = 4654576. Its totient is φ = 3490920.

The previous prime is 4072721. The next prime is 4072751. The reversal of 4072747 is 7472704.

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 4072747 - 2⁷ = 4072619 is a prime.

It is a Duffinian number.

4072747 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4072147) 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, 290904 + ... + 290917.

It is an arithmetic number, because the mean of its divisors is an integer number (1163644).

Almost surely, 2^4072747 is an apocalyptic number.

4072747 is a deficient number, since it is larger than the sum of its proper divisors (581829).

4072747 is an equidigital number, since it uses as much as digits as its factorization.

4072747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581828.

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 4072747 is about 2018.1048040179. The cubic root of 4072747 is about 159.6966518002.

The spelling of 4072747 in words is "four million, seventy-two thousand, seven hundred forty-seven".