4020715 has 8 divisors (see below), whose sum is σ = 4937328. Its totient is φ = 3141600.

The previous prime is 4020713. The next prime is 4020719. The reversal of 4020715 is 5170204.

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

It is not a de Polignac number, because 4020715 - 2¹ = 4020713 is a prime.

It is a super-2 number, since 2×4020715² = 32332298222450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4020692 and 4020701.

It is not an unprimeable number, because it can be changed into a prime (4020713) 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, 9136 + ... + 9565.

It is an arithmetic number, because the mean of its divisors is an integer number (617166).

Almost surely, 2^4020715 is an apocalyptic number.

4020715 is a deficient number, since it is larger than the sum of its proper divisors (916613).

4020715 is a wasteful number, since it uses less digits than its factorization.

4020715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18749.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 4020715 is about 2005.1720624425. The cubic root of 4020715 is about 159.0136586239.

Adding to 4020715 its reverse (5170204), we get a palindrome (9190919).

The spelling of 4020715 in words is "four million, twenty thousand, seven hundred fifteen".