742099 has 4 divisors (see below), whose sum is σ = 746064. Its totient is φ = 738136.

The previous prime is 742073. The next prime is 742111. The reversal of 742099 is 990247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 990247 = 43 ⋅23029.

It is a cyclic number.

It is not a de Polignac number, because 742099 - 2¹⁷ = 611027 is a prime.

It is an Ulam number.

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 742099.

It is not an unprimeable number, because it can be changed into a prime (742009) 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, 1687 + ... + 2080.

It is an arithmetic number, because the mean of its divisors is an integer number (186516).

2⁷⁴²⁰⁹⁹ is an apocalyptic number.

742099 is a deficient number, since it is larger than the sum of its proper divisors (3965).

742099 is a wasteful number, since it uses less digits than its factorization.

742099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 742099 is about 861.4516817559. The cubic root of 742099 is about 90.5358566949.

The spelling of 742099 in words is "seven hundred forty-two thousand, ninety-nine".