93581972 has 12 divisors (see below), whose sum is σ = 178656576. Its totient is φ = 42537240.

The previous prime is 93581921. The next prime is 93581977. The reversal of 93581972 is 27918539.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 2126863 = 93581972 / (9 + 3 + 5 + 8 + 1 + 9 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93581977) 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, 1063388 + ... + 1063475.

It is an arithmetic number, because the mean of its divisors is an integer number (14888048).

Almost surely, 2^93581972 is an apocalyptic number.

It is an amenable number.

93581972 is a deficient number, since it is larger than the sum of its proper divisors (85074604).

93581972 is a wasteful number, since it uses less digits than its factorization.

93581972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126878 (or 2126876 counting only the distinct ones).

The product of its digits is 136080, while the sum is 44.

The square root of 93581972 is about 9673.7775455093. Note that the first 3 decimals coincide. The cubic root of 93581972 is about 454.0085840007.

The spelling of 93581972 in words is "ninety-three million, five hundred eighty-one thousand, nine hundred seventy-two".