75628079 has 4 divisors (see below), whose sum is σ = 76135800. Its totient is φ = 75120360.

The previous prime is 75628061. The next prime is 75628109. The reversal of 75628079 is 97082657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97082657 = 7 ⋅13868951.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75628079 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 (75628009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253637 + ... + 253934.

It is an arithmetic number, because the mean of its divisors is an integer number (19033950).

Almost surely, 2^75628079 is an apocalyptic number.

75628079 is a deficient number, since it is larger than the sum of its proper divisors (507721).

75628079 is a wasteful number, since it uses less digits than its factorization.

75628079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507720.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 75628079 is about 8696.4405937142. The cubic root of 75628079 is about 422.8902669417.

The spelling of 75628079 in words is "seventy-five million, six hundred twenty-eight thousand, seventy-nine".