1700072 has 16 divisors (see below), whose sum is σ = 3477600. Its totient is φ = 772720.

The previous prime is 1700059. The next prime is 1700077. The reversal of 1700072 is 2700071.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1700072.

It is not an unprimeable number, because it can be changed into a prime (1700077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9572 + ... + 9747.

It is an arithmetic number, because the mean of its divisors is an integer number (217350).

2^1700072 is an apocalyptic number.

It is an amenable number.

1700072 is an abundant number, since it is smaller than the sum of its proper divisors (1777528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1700072 is a wasteful number, since it uses less digits than its factorization.

1700072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19336 (or 19332 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 17.

The square root of 1700072 is about 1303.8680914878. The cubic root of 1700072 is about 119.3500040864.

Subtracting 1700072 from its reverse (2700071), we obtain a palindrome (999999).

The spelling of 1700072 in words is "one million, seven hundred thousand, seventy-two".