96919021 has 4 divisors (see below), whose sum is σ = 99538492. Its totient is φ = 94299552.

The previous prime is 96918973. The next prime is 96919027. The reversal of 96919021 is 12091969.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63441225 + 33477796 = 7965^2 + 5786^2 .

It is a cyclic number.

It is not a de Polignac number, because 96919021 - 2⁹ = 96918509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 2619433 = 96919021 / (9 + 6 + 9 + 1 + 9 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96919027) 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, 1309680 + ... + 1309753.

It is an arithmetic number, because the mean of its divisors is an integer number (24884623).

Almost surely, 2^96919021 is an apocalyptic number.

It is an amenable number.

96919021 is a deficient number, since it is larger than the sum of its proper divisors (2619471).

96919021 is a wasteful number, since it uses less digits than its factorization.

96919021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619470.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 96919021 is about 9844.7458575628. The cubic root of 96919021 is about 459.3421930448.

The spelling of 96919021 in words is "ninety-six million, nine hundred nineteen thousand, twenty-one".