93778073 has 8 divisors (see below), whose sum is σ = 94585608. Its totient is φ = 92974464.

The previous prime is 93778057. The next prime is 93778099. The reversal of 93778073 is 37087739.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12201049 + 81577024 = 3493^2 + 9032^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 93778073 - 2⁴ = 93778057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93778033) 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, 63815 + ... + 65267.

It is an arithmetic number, because the mean of its divisors is an integer number (11823201).

Almost surely, 2^93778073 is an apocalyptic number.

It is an amenable number.

93778073 is a deficient number, since it is larger than the sum of its proper divisors (807535).

93778073 is a wasteful number, since it uses less digits than its factorization.

93778073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 93778073 is about 9683.9079404959. The cubic root of 93778073 is about 454.3254877062.

The spelling of 93778073 in words is "ninety-three million, seven hundred seventy-eight thousand, seventy-three".