93009381 has 16 divisors (see below), whose sum is σ = 126966528. Its totient is φ = 60536000.

The previous prime is 93009377. The next prime is 93009403. The reversal of 93009381 is 18390039.

It is not a de Polignac number, because 93009381 - 2² = 93009377 is a prime.

It is a super-2 number, since 2×93009381² = 17301489908006322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93009341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98371 + ... + 99311.

It is an arithmetic number, because the mean of its divisors is an integer number (7935408).

Almost surely, 2^93009381 is an apocalyptic number.

It is an amenable number.

93009381 is a deficient number, since it is larger than the sum of its proper divisors (33957147).

93009381 is a wasteful number, since it uses less digits than its factorization.

93009381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 93009381 is about 9644.1371309205. The cubic root of 93009381 is about 453.0807228143.

It can be divided in two parts, 9300 and 9381, that added together give a palindrome (18681).

The spelling of 93009381 in words is "ninety-three million, nine thousand, three hundred eighty-one".