75842345 has 4 divisors (see below), whose sum is σ = 91010820. Its totient is φ = 60673872.

The previous prime is 75842303. The next prime is 75842353. The reversal of 75842345 is 54324857.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30791401 + 45050944 = 5549^2 + 6712^2 .

It is a cyclic number.

It is not a de Polignac number, because 75842345 - 2¹² = 75838249 is a prime.

It is a super-2 number, since 2×75842345² = 11504122590198050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75842299 and 75842308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7584230 + ... + 7584239.

It is an arithmetic number, because the mean of its divisors is an integer number (22752705).

Almost surely, 2^75842345 is an apocalyptic number.

It is an amenable number.

75842345 is a deficient number, since it is larger than the sum of its proper divisors (15168475).

75842345 is a wasteful number, since it uses less digits than its factorization.

75842345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15168474.

The product of its digits is 134400, while the sum is 38.

The square root of 75842345 is about 8708.7510585617. The cubic root of 75842345 is about 423.2892614683.

The spelling of 75842345 in words is "seventy-five million, eight hundred forty-two thousand, three hundred forty-five".