93809481 has 4 divisors (see below), whose sum is σ = 125079312. Its totient is φ = 62539652.

The previous prime is 93809477. The next prime is 93809497. The reversal of 93809481 is 18490839.

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 93809481 - 2² = 93809477 is a prime.

It is a super-2 number, since 2×93809481² = 17600437450978722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (93809431) 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, 15634911 + ... + 15634916.

It is an arithmetic number, because the mean of its divisors is an integer number (31269828).

Almost surely, 2^93809481 is an apocalyptic number.

It is an amenable number.

93809481 is a deficient number, since it is larger than the sum of its proper divisors (31269831).

93809481 is a wasteful number, since it uses less digits than its factorization.

93809481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31269830.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 93809481 is about 9685.5294641026. The cubic root of 93809481 is about 454.3762026965.

The spelling of 93809481 in words is "ninety-three million, eight hundred nine thousand, four hundred eighty-one".