4072069 has 4 divisors (see below), whose sum is σ = 4076320. Its totient is φ = 4067820.

The previous prime is 4072049. The next prime is 4072073. The reversal of 4072069 is 9602704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4072069 - 2⁷ = 4071941 is a prime.

It is a super-2 number, since 2×4072069² = 33163491881522, which contains 22 as substring.

It is a Duffinian number.

4072069 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4072009) 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, 64 + ... + 2854.

It is an arithmetic number, because the mean of its divisors is an integer number (1019080).

Almost surely, 2^4072069 is an apocalyptic number.

It is an amenable number.

4072069 is a deficient number, since it is larger than the sum of its proper divisors (4251).

4072069 is a wasteful number, since it uses less digits than its factorization.

4072069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4250.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 4072069 is about 2017.9368176432. The cubic root of 4072069 is about 159.6877896130.

The spelling of 4072069 in words is "four million, seventy-two thousand, sixty-nine".