75274999 has 4 divisors (see below), whose sum is σ = 76695336. Its totient is φ = 73854664.

The previous prime is 75274993. The next prime is 75275009. The reversal of 75274999 is 99947257.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99947257 = 113 ⋅884489.

It is a cyclic number.

It is not a de Polignac number, because 75274999 - 2⁵ = 75274967 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 (75274993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710089 + ... + 710194.

It is an arithmetic number, because the mean of its divisors is an integer number (19173834).

Almost surely, 2^75274999 is an apocalyptic number.

75274999 is a deficient number, since it is larger than the sum of its proper divisors (1420337).

75274999 is a wasteful number, since it uses less digits than its factorization.

75274999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420336.

The product of its digits is 1428840, while the sum is 52.

The square root of 75274999 is about 8676.1165852010. The cubic root of 75274999 is about 422.2311331632.

The spelling of 75274999 in words is "seventy-five million, two hundred seventy-four thousand, nine hundred ninety-nine".