75398913 has 24 divisors (see below), whose sum is σ = 114566400. Its totient is φ = 47717280.

The previous prime is 75398903. The next prime is 75398923. The reversal of 75398913 is 31989357.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (75398903) and next prime (75398923).

It is not a de Polignac number, because 75398913 - 2⁶ = 75398849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75398903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12238 + ... + 17336.

It is an arithmetic number, because the mean of its divisors is an integer number (4773600).

Almost surely, 2^75398913 is an apocalyptic number.

It is an amenable number.

75398913 is a deficient number, since it is larger than the sum of its proper divisors (39167487).

75398913 is a wasteful number, since it uses less digits than its factorization.

75398913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5189 (or 5186 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 75398913 is about 8683.2547469253. The cubic root of 75398913 is about 422.4626915225.

The spelling of 75398913 in words is "seventy-five million, three hundred ninety-eight thousand, nine hundred thirteen".