88180993 has 4 divisors (see below), whose sum is σ = 88246228. Its totient is φ = 88115760.

The previous prime is 88180991. The next prime is 88180997. The reversal of 88180993 is 39908188.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19158129 + 69022864 = 4377^2 + 8308^2 .

It is a cyclic number.

It is not a de Polignac number, because 88180993 - 2¹ = 88180991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88180991) 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, 30546 + ... + 33307.

It is an arithmetic number, because the mean of its divisors is an integer number (22061557).

Almost surely, 2^88180993 is an apocalyptic number.

It is an amenable number.

88180993 is a deficient number, since it is larger than the sum of its proper divisors (65235).

88180993 is a wasteful number, since it uses less digits than its factorization.

88180993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65234.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 88180993 is about 9390.4735237367. The cubic root of 88180993 is about 445.1007523416.

The spelling of 88180993 in words is "eighty-eight million, one hundred eighty thousand, nine hundred ninety-three".