742786 has 16 divisors (see below), whose sum is σ = 1280160. Its totient is φ = 319680.

The previous prime is 742783. The next prime is 742789. The reversal of 742786 is 687247.

It is an interprime number because it is at equal distance from previous prime (742783) and next prime (742789).

It is not an unprimeable number, because it can be changed into a prime (742783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471 + ... + 1306.

It is an arithmetic number, because the mean of its divisors is an integer number (80010).

2⁷⁴²⁷⁸⁶ is an apocalyptic number.

742786 is a deficient number, since it is larger than the sum of its proper divisors (537374).

742786 is a wasteful number, since it uses less digits than its factorization.

742786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809.

The product of its digits is 18816, while the sum is 34.

The square root of 742786 is about 861.8503350350. The cubic root of 742786 is about 90.5637860098.

The spelling of 742786 in words is "seven hundred forty-two thousand, seven hundred eighty-six".