942997489 has 4 divisors (see below), whose sum is σ = 1077711424. Its totient is φ = 808283556.

The previous prime is 942997481. The next prime is 942997529. The reversal of 942997489 is 984799249.

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: 984799249 = 7 ⋅140685607.

It is a cyclic number.

It is not a de Polignac number, because 942997489 - 2³ = 942997481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (942997481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67356957 + ... + 67356970.

It is an arithmetic number, because the mean of its divisors is an integer number (269427856).

Almost surely, 2^942997489 is an apocalyptic number.

It is an amenable number.

942997489 is a deficient number, since it is larger than the sum of its proper divisors (134713935).

942997489 is a wasteful number, since it uses less digits than its factorization.

942997489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134713934.

The product of its digits is 11757312, while the sum is 61.

The square root of 942997489 is about 30708.2641808358. The cubic root of 942997489 is about 980.6262445296.

The spelling of 942997489 in words is "nine hundred forty-two million, nine hundred ninety-seven thousand, four hundred eighty-nine".