742899 has 4 divisors (see below), whose sum is σ = 990536. Its totient is φ = 495264.

The previous prime is 742897. The next prime is 742909. The reversal of 742899 is 998247.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998247 = 3 ⋅332749.

It is not a de Polignac number, because 742899 - 2¹ = 742897 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123814 + ... + 123819.

It is an arithmetic number, because the mean of its divisors is an integer number (247634).

2⁷⁴²⁸⁹⁹ is an apocalyptic number.

742899 is a deficient number, since it is larger than the sum of its proper divisors (247637).

742899 is a wasteful number, since it uses less digits than its factorization.

742899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247636.

The product of its digits is 36288, while the sum is 39.

The square root of 742899 is about 861.9158891678. The cubic root of 742899 is about 90.5683782651.

The spelling of 742899 in words is "seven hundred forty-two thousand, eight hundred ninety-nine".