93872991 has 8 divisors (see below), whose sum is σ = 129201664. Its totient is φ = 60563160.

The previous prime is 93872951. The next prime is 93872993. The reversal of 93872991 is 19927839.

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

It is not a de Polignac number, because 93872991 - 2⁶ = 93872927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 93872991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93872993) 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, 504601 + ... + 504786.

It is an arithmetic number, because the mean of its divisors is an integer number (16150208).

Almost surely, 2^93872991 is an apocalyptic number.

93872991 is a deficient number, since it is larger than the sum of its proper divisors (35328673).

93872991 is a wasteful number, since it uses less digits than its factorization.

93872991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009421.

The product of its digits is 244944, while the sum is 48.

The square root of 93872991 is about 9688.8075117633. The cubic root of 93872991 is about 454.4787187127.

The spelling of 93872991 in words is "ninety-three million, eight hundred seventy-two thousand, nine hundred ninety-one".