4012007 has 4 divisors (see below), whose sum is σ = 4067040. Its totient is φ = 3956976.

The previous prime is 4011991. The next prime is 4012013. The reversal of 4012007 is 7002104.

It is a happy number.

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 4012007 - 2⁴ = 4011991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4011982 and 4012000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4012037) 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, 27407 + ... + 27552.

It is an arithmetic number, because the mean of its divisors is an integer number (1016760).

Almost surely, 2^4012007 is an apocalyptic number.

4012007 is a deficient number, since it is larger than the sum of its proper divisors (55033).

4012007 is an equidigital number, since it uses as much as digits as its factorization.

4012007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55032.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 4012007 is about 2002.9995007488. Note that the first 3 decimals coincide. The cubic root of 4012007 is about 158.8987792396.

The spelling of 4012007 in words is "four million, twelve thousand, seven".