747942 has 32 divisors (see below), whose sum is σ = 1655808. Its totient is φ = 223776.

The previous prime is 747941. The next prime is 747953. The reversal of 747942 is 249747.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747941) 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 15 ways as a sum of consecutive naturals, for example, 3243 + ... + 3465.

It is an arithmetic number, because the mean of its divisors is an integer number (51744).

2⁷⁴⁷⁹⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 747942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827904).

747942 is an abundant number, since it is smaller than the sum of its proper divisors (907866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

747942 is a wasteful number, since it uses less digits than its factorization.

747942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284.

The product of its digits is 14112, while the sum is 33.

The square root of 747942 is about 864.8364007140. The cubic root of 747942 is about 90.7728505322.

The spelling of 747942 in words is "seven hundred forty-seven thousand, nine hundred forty-two".