75397398 has 16 divisors (see below), whose sum is σ = 153351360. Its totient is φ = 24706376.

The previous prime is 75397391. The next prime is 75397423. The reversal of 75397398 is 89379357.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 75397398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75397391) 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, 106140 + ... + 106847.

It is an arithmetic number, because the mean of its divisors is an integer number (9584460).

Almost surely, 2^75397398 is an apocalyptic number.

75397398 is an abundant number, since it is smaller than the sum of its proper divisors (77953962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75397398 is a wasteful number, since it uses less digits than its factorization.

75397398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213051.

The product of its digits is 1428840, while the sum is 51.

The square root of 75397398 is about 8683.1675096131. The cubic root of 75397398 is about 422.4598619713.

The spelling of 75397398 in words is "seventy-five million, three hundred ninety-seven thousand, three hundred ninety-eight".