93428237 has 8 divisors (see below), whose sum is σ = 106907136. Its totient is φ = 79982352.

The previous prime is 93428233. The next prime is 93428239. The reversal of 93428237 is 73282439.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 93428237 - 2² = 93428233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 93428237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93428233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1853 + ... + 13794.

It is an arithmetic number, because the mean of its divisors is an integer number (13363392).

Almost surely, 2^93428237 is an apocalyptic number.

It is an amenable number.

93428237 is a deficient number, since it is larger than the sum of its proper divisors (13478899).

93428237 is a wasteful number, since it uses less digits than its factorization.

93428237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16507.

The product of its digits is 72576, while the sum is 38.

The square root of 93428237 is about 9665.8283142212. The cubic root of 93428237 is about 453.7598350035.

The spelling of 93428237 in words is "ninety-three million, four hundred twenty-eight thousand, two hundred thirty-seven".