93619421 has 4 divisors (see below), whose sum is σ = 106993632. Its totient is φ = 80245212.

The previous prime is 93619387. The next prime is 93619423. The reversal of 93619421 is 12491639.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12491639 = 1931 ⋅6469.

It is a cyclic number.

It is not a de Polignac number, because 93619421 - 2²⁶ = 26510557 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 (93619423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6687095 + ... + 6687108.

It is an arithmetic number, because the mean of its divisors is an integer number (26748408).

Almost surely, 2^93619421 is an apocalyptic number.

It is an amenable number.

93619421 is a deficient number, since it is larger than the sum of its proper divisors (13374211).

93619421 is a wasteful number, since it uses less digits than its factorization.

93619421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13374210.

The product of its digits is 11664, while the sum is 35.

The square root of 93619421 is about 9675.7129453080. The cubic root of 93619421 is about 454.0691366180.

The spelling of 93619421 in words is "ninety-three million, six hundred nineteen thousand, four hundred twenty-one".