942397 has 4 divisors (see below), whose sum is σ = 962496. Its totient is φ = 922300.

The previous prime is 942371. The next prime is 942401. The reversal of 942397 is 793249.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 793249 = 283 ⋅2803.

It is a cyclic number.

It is not a de Polignac number, because 942397 - 2⁷ = 942269 is a prime.

It is a super-2 number, since 2×942397² = 1776224211218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942317) 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, 9979 + ... + 10072.

It is an arithmetic number, because the mean of its divisors is an integer number (240624).

2⁹⁴²³⁹⁷ is an apocalyptic number.

It is an amenable number.

942397 is a deficient number, since it is larger than the sum of its proper divisors (20099).

942397 is a wasteful number, since it uses less digits than its factorization.

942397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20098.

The product of its digits is 13608, while the sum is 34.

The square root of 942397 is about 970.7713427991. The cubic root of 942397 is about 98.0418050158.

The spelling of 942397 in words is "nine hundred forty-two thousand, three hundred ninety-seven".