75621074 has 4 divisors (see below), whose sum is σ = 113431614. Its totient is φ = 37810536.

The previous prime is 75621071. The next prime is 75621101. The reversal of 75621074 is 47012657.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47012657 = 73 ⋅644009.

It can be written as a sum of positive squares in only one way, i.e., 54982225 + 20638849 = 7415^2 + 4543^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75621074.

It is not an unprimeable number, because it can be changed into a prime (75621071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18905267 + ... + 18905270.

Almost surely, 2^75621074 is an apocalyptic number.

75621074 is a deficient number, since it is larger than the sum of its proper divisors (37810540).

75621074 is a wasteful number, since it uses less digits than its factorization.

75621074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37810539.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 75621074 is about 8696.0378334044. The cubic root of 75621074 is about 422.8772098963.

The spelling of 75621074 in words is "seventy-five million, six hundred twenty-one thousand, seventy-four".