920991337 has 16 divisors (see below), whose sum is σ = 1120728960. Its totient is φ = 738816768.

The previous prime is 920991319. The next prime is 920991341. The reversal of 920991337 is 733199029.

It is a cyclic number.

It is not a de Polignac number, because 920991337 - 2¹⁵ = 920958569 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 920991293 and 920991302.

It is not an unprimeable number, because it can be changed into a prime (920991317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318 + ... + 42919.

It is an arithmetic number, because the mean of its divisors is an integer number (70045560).

Almost surely, 2^920991337 is an apocalyptic number.

It is an amenable number.

920991337 is a deficient number, since it is larger than the sum of its proper divisors (199737623).

920991337 is a wasteful number, since it uses less digits than its factorization.

920991337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43440.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 920991337 is about 30347.8390828738. The cubic root of 920991337 is about 972.9380353450.

The spelling of 920991337 in words is "nine hundred twenty million, nine hundred ninety-one thousand, three hundred thirty-seven".