96428021 has 4 divisors (see below), whose sum is σ = 101503200. Its totient is φ = 91352844.

The previous prime is 96428009. The next prime is 96428027. The reversal of 96428021 is 12082469.

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 96428021 - 2¹⁰ = 96426997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96428027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2537561 + ... + 2537598.

It is an arithmetic number, because the mean of its divisors is an integer number (25375800).

Almost surely, 2^96428021 is an apocalyptic number.

It is an amenable number.

96428021 is a deficient number, since it is larger than the sum of its proper divisors (5075179).

96428021 is a wasteful number, since it uses less digits than its factorization.

96428021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075178.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 96428021 is about 9819.7770341286. Note that the first 3 decimals coincide. The cubic root of 96428021 is about 458.5651905767.

The spelling of 96428021 in words is "ninety-six million, four hundred twenty-eight thousand, twenty-one".