719942 has 8 divisors (see below), whose sum is σ = 1093176. Its totient is φ = 355552.

The previous prime is 719941. The next prime is 719947. The reversal of 719942 is 249917.

719942 = 49² + 50² + ... + 131².

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 719899 and 719908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (719941) 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, 2003 + ... + 2334.

It is an arithmetic number, because the mean of its divisors is an integer number (136647).

2⁷¹⁹⁹⁴² is an apocalyptic number.

719942 is a deficient number, since it is larger than the sum of its proper divisors (373234).

719942 is a wasteful number, since it uses less digits than its factorization.

719942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422.

The product of its digits is 4536, while the sum is 32.

The square root of 719942 is about 848.4939599078. The cubic root of 719942 is about 89.6256881862.

It can be divided in two parts, 719 and 942, that added together give a palindrome (1661).

The spelling of 719942 in words is "seven hundred nineteen thousand, nine hundred forty-two".