1083897021 has 8 divisors (see below), whose sum is σ = 1446348960. Its totient is φ = 722021552.

The previous prime is 1083897019. The next prime is 1083897029. The reversal of 1083897021 is 1207983801.

1083897021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1083897021 - 2¹ = 1083897019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083897029) 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, 139710 + ... + 147263.

It is an arithmetic number, because the mean of its divisors is an integer number (180793620).

Almost surely, 2^1083897021 is an apocalyptic number.

It is an amenable number.

1083897021 is a deficient number, since it is larger than the sum of its proper divisors (362451939).

1083897021 is a wasteful number, since it uses less digits than its factorization.

1083897021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288235.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1083897021 is about 32922.5913469763. The cubic root of 1083897021 is about 1027.2181259827.

The spelling of 1083897021 in words is "one billion, eighty-three million, eight hundred ninety-seven thousand, twenty-one".