1642007 has 4 divisors (see below), whose sum is σ = 1653960. Its totient is φ = 1630056.

The previous prime is 1641971. The next prime is 1642021. The reversal of 1642007 is 7002461.

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 1642007 - 2⁸ = 1641751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1642007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642057) 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, 5768 + ... + 6045.

It is an arithmetic number, because the mean of its divisors is an integer number (413490).

2^1642007 is an apocalyptic number.

1642007 is a deficient number, since it is larger than the sum of its proper divisors (11953).

1642007 is a wasteful number, since it uses less digits than its factorization.

1642007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11952.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 1642007 is about 1281.4082097443. The cubic root of 1642007 is about 117.9754569276.

Adding to 1642007 its reverse (7002461), we get a palindrome (8644468).

The spelling of 1642007 in words is "one million, six hundred forty-two thousand, seven".