74678345 has 16 divisors (see below), whose sum is σ = 102558720. Its totient is φ = 51136704.

The previous prime is 74678327. The next prime is 74678363. The reversal of 74678345 is 54387647.

It is an interprime number because it is at equal distance from previous prime (74678327) and next prime (74678363).

It is a cyclic number.

It is not a de Polignac number, because 74678345 - 2⁶ = 74678281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74678296 and 74678305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41576 + ... + 43334.

It is an arithmetic number, because the mean of its divisors is an integer number (6409920).

Almost surely, 2^74678345 is an apocalyptic number.

It is an amenable number.

74678345 is a deficient number, since it is larger than the sum of its proper divisors (27880375).

74678345 is a wasteful number, since it uses less digits than its factorization.

74678345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984.

The product of its digits is 564480, while the sum is 44.

The square root of 74678345 is about 8641.6633236895. The cubic root of 74678345 is about 421.1125924353.

The spelling of 74678345 in words is "seventy-four million, six hundred seventy-eight thousand, three hundred forty-five".