193376421 has 12 divisors (see below), whose sum is σ = 319224672. Its totient is φ = 110500776.

The previous prime is 193376413. The next prime is 193376473. The reversal of 193376421 is 124673391.

193376421 is a `hidden beast` number, since 1 + 9 + 3 + 3 + 7 + 642 + 1 = 666.

It is not a de Polignac number, because 193376421 - 2³ = 193376413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193376401) 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 11 ways as a sum of consecutive naturals, for example, 1534671 + ... + 1534796.

It is an arithmetic number, because the mean of its divisors is an integer number (26602056).

Almost surely, 2^193376421 is an apocalyptic number.

It is an amenable number.

193376421 is a deficient number, since it is larger than the sum of its proper divisors (125848251).

193376421 is a wasteful number, since it uses less digits than its factorization.

193376421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3069480 (or 3069477 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 193376421 is about 13905.9850783754. The cubic root of 193376421 is about 578.2751181666.

The spelling of 193376421 in words is "one hundred ninety-three million, three hundred seventy-six thousand, four hundred twenty-one".