1999702 has 16 divisors (see below), whose sum is σ = 3138192. Its totient is φ = 954720.

The previous prime is 1999691. The next prime is 1999703. The reversal of 1999702 is 2079991.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999703) 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 7 ways as a sum of consecutive naturals, for example, 4293 + ... + 4735.

It is an arithmetic number, because the mean of its divisors is an integer number (196137).

2^1999702 is an apocalyptic number.

1999702 is a deficient number, since it is larger than the sum of its proper divisors (1138490).

1999702 is a wasteful number, since it uses less digits than its factorization.

1999702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 1999702 is about 1414.1081995378. The cubic root of 1999702 is about 125.9858470708.

It can be divided in two parts, 1999 and 702, that added together give a triangular number (2701 = T₇₃).

The spelling of 1999702 in words is "one million, nine hundred ninety-nine thousand, seven hundred two".