930991749 has 4 divisors (see below), whose sum is σ = 1241322336. Its totient is φ = 620661164.

The previous prime is 930991687. The next prime is 930991793. The reversal of 930991749 is 947199039.

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.

It is a cyclic number.

It is not a de Polignac number, because 930991749 - 2²⁴ = 914214533 is a prime.

It is a super-3 number, since 3×930991749³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (930991049) 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, 155165289 + ... + 155165294.

It is an arithmetic number, because the mean of its divisors is an integer number (310330584).

Almost surely, 2^930991749 is an apocalyptic number.

It is an amenable number.

930991749 is a deficient number, since it is larger than the sum of its proper divisors (310330587).

930991749 is a wasteful number, since it uses less digits than its factorization.

930991749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310330586.

The product of its (nonzero) digits is 551124, while the sum is 51.

The square root of 930991749 is about 30512.1573966837. The cubic root of 930991749 is about 976.4468543721.

The spelling of 930991749 in words is "nine hundred thirty million, nine hundred ninety-one thousand, seven hundred forty-nine".