93431073 has 4 divisors (see below), whose sum is σ = 124574768. Its totient is φ = 62287380.

The previous prime is 93431071. The next prime is 93431137. The reversal of 93431073 is 37013439.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37013439 = 3 ⋅12337813.

It is not a de Polignac number, because 93431073 - 2¹ = 93431071 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 93431073.

It is not an unprimeable number, because it can be changed into a prime (93431071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15571843 + ... + 15571848.

It is an arithmetic number, because the mean of its divisors is an integer number (31143692).

Almost surely, 2^93431073 is an apocalyptic number.

It is an amenable number.

93431073 is a deficient number, since it is larger than the sum of its proper divisors (31143695).

93431073 is a wasteful number, since it uses less digits than its factorization.

93431073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31143694.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 93431073 is about 9665.9750154860. The cubic root of 93431073 is about 453.7644262274.

The spelling of 93431073 in words is "ninety-three million, four hundred thirty-one thousand, seventy-three".