75342397 has 12 divisors (see below), whose sum is σ = 83795700. Its totient is φ = 67661568.

The previous prime is 75342383. The next prime is 75342401. The reversal of 75342397 is 79324357.

It can be written as a sum of positive squares in 6 ways, for example, as 329476 + 75012921 = 574^2 + 8661^2 .

It is a de Polignac number, because none of the positive numbers 2^k-75342397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75342347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229 + ... + 12277.

It is an arithmetic number, because the mean of its divisors is an integer number (6982975).

Almost surely, 2^75342397 is an apocalyptic number.

It is an amenable number.

75342397 is a deficient number, since it is larger than the sum of its proper divisors (8453303).

75342397 is a wasteful number, since it uses less digits than its factorization.

75342397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12112 (or 12099 counting only the distinct ones).

The product of its digits is 158760, while the sum is 40.

The square root of 75342397 is about 8679.9998271889. Note that the first 3 decimals coincide. The cubic root of 75342397 is about 422.3571114442.

The spelling of 75342397 in words is "seventy-five million, three hundred forty-two thousand, three hundred ninety-seven".