93921291 has 6 divisors (see below), whose sum is σ = 135664100. Its totient is φ = 62614188.

The previous prime is 93921287. The next prime is 93921293. The reversal of 93921291 is 19212939.

It is a happy number.

It is not a de Polignac number, because 93921291 - 2² = 93921287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93921293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5217841 + ... + 5217858.

Almost surely, 2^93921291 is an apocalyptic number.

93921291 is a deficient number, since it is larger than the sum of its proper divisors (41742809).

93921291 is a wasteful number, since it uses less digits than its factorization.

93921291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10435705 (or 10435702 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 93921291 is about 9691.2997580304. The cubic root of 93921291 is about 454.5566522344.

The spelling of 93921291 in words is "ninety-three million, nine hundred twenty-one thousand, two hundred ninety-one".