920541021 has 8 divisors (see below), whose sum is σ = 1227626400. Its totient is φ = 613574832.

The previous prime is 920540993. The next prime is 920541043. The reversal of 920541021 is 120145029.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 920541021 - 2¹⁴ = 920524637 is a prime.

It is a super-3 number, since 3×920541021³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 920540982 and 920541000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920541071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9871 + ... + 44028.

It is an arithmetic number, because the mean of its divisors is an integer number (153453300).

Almost surely, 2^920541021 is an apocalyptic number.

It is an amenable number.

920541021 is a deficient number, since it is larger than the sum of its proper divisors (307085379).

920541021 is a wasteful number, since it uses less digits than its factorization.

920541021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59595.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 920541021 is about 30340.4189325065. The cubic root of 920541021 is about 972.7794377652.

The spelling of 920541021 in words is "nine hundred twenty million, five hundred forty-one thousand, twenty-one".