74814893 has 4 divisors (see below), whose sum is σ = 74860380. Its totient is φ = 74769408.

The previous prime is 74814889. The next prime is 74814907. The reversal of 74814893 is 39841847.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39841847 = 293 ⋅135979.

It can be written as a sum of positive squares in 2 ways, for example, as 6620329 + 68194564 = 2573^2 + 8258^2 .

It is a cyclic number.

It is not a de Polignac number, because 74814893 - 2² = 74814889 is a prime.

It is a super-3 number, since 3×74814893³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74814823) 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, 20180 + ... + 23597.

It is an arithmetic number, because the mean of its divisors is an integer number (18715095).

Almost surely, 2^74814893 is an apocalyptic number.

It is an amenable number.

74814893 is a deficient number, since it is larger than the sum of its proper divisors (45487).

74814893 is a wasteful number, since it uses less digits than its factorization.

74814893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45486.

The product of its digits is 193536, while the sum is 44.

The square root of 74814893 is about 8649.5602778407. The cubic root of 74814893 is about 421.3691017382.

The spelling of 74814893 in words is "seventy-four million, eight hundred fourteen thousand, eight hundred ninety-three".